The Invisible Island by Dean Marshall, 1948.

The four Guthrie children (Dit, Allen, David, and Winkie – short for Winifred) find it difficult to play in their family’s apartment, where they always have to be careful not to disturb the neighbors. One rainy day, while their mother is at a dentist appointment, the children act out a scene from The Swiss Family Robinson, where they’re throwing the animals overboard from the shipwreck to swim to the desert island when they accidentally break part of the floor, which is also the same as breaking part of the ceiling for the neighbors underneath. When they get a knock at their door, shortly after, they figure that the neighbors have come to complain.

However, it turns out that their visitor is the neighbors’ cousin, who is staying with them. The children explain about The Swiss Family Robinson, the shipwreck, and how they were throwing particularly heavy ducks overboard from their wrecked ship. The neighbors’ cousin is a good-natured man who enjoys talking to the children. When the children’s mother comes home, she apologizes for the damage and explains that she and her husband are currently looking for a new house with more room for the children to play, but they haven’t found a place yet. The cousin says that he comes from a smaller town himself, Anchorage, Connecticut, and he might be able to help them find a place to buy there.

The Guthries do rent a house in that town that has some land attached to it, and the children are excited about the move. They want to be able to camp out on their land, like castaways from their favorite book. When they stop in town to buy some supplies before heading to their new house, they are surprised that there don’t seem to be any children around. The shopkeeper explains that there’s a measles epidemic going around town, and most of the children have it right now. He asks the Guthries if their children have had measles before, and their mother says they have … except for the youngest, Winkie. She decides that, for safety’s sake, she should keep the children close to home until the epidemic is over, and the kids should wait to try to make some new friends in town.

The children are hoping to find some new friends, but there’s plenty to do at their new house in the countryside to keep them occupied for a while. On their first day there, they are delighted to find out that there’s a brook and a lake on their property. The children convince their father to come exploring with them, and he has them help him to make a map of the area, knowing that they will want to camp out later. After walking around a piece of land that’s bordered by the lake and the brook, they realize that it’s actually an island because it is bordered on every side by water. The lake is on one side, the brook on another, and there are two more brooks or streams on the other sides that separate it from the land around it and make it into a sort of oblong-shaped island. They call it “The Invisible Island” because it isn’t obvious that it is actually an island until someone walks all the way around it and realizes that it’s actually surrounded by water on all sides. As far as they know, nobody else besides them is even aware that it’s an island.

The children’s mother has some reservations about the children camping out on the island, but the children agree to some safety rules and bringing along some practical camping supplies. They make a raft to carry their supplies across the water to the island. The children begin calling their new house “The Wreck”, imagining that they are rescuing supplies from a shipwreck, like The Swiss Family Robinson. They create a hiding place for their tents, and they find a spring on the island, although their father won’t let them drink from it until he has the water tested to make sure that it’s safe.

The children have enough supplies to camp on the island for a week, and they begin having an idyllic summer, with little adult supervision. They swim and bathe in the lake, using colorful soap on a rope that Winkie found when the family bought supplies at the store in town. They feed the birds, explore, and pick wild strawberries. They get ideas for how castaways are supposed to act from The Swiss Family Robinson and The Mysterious Island.

Their parents do come to visit them and check on them, playing along with the shipwreck theme by calling themselves friendly “savages” when they visit the camp. Their father helps the children to bring stones from a quarry to build a hut. Their mother tells them that she has started to meet the neighbors, and they have some nice children who could make good friends for the Guthries, once they’re out of quarantine from the measles. Both the nice man who helped them find the house to rent and the local doctor have nieces and nephews. The children don’t care that their mother thinks the children are well-mannered. They’re more concerned about whether or not they’ll be adventurous types, who would have fun with them on their special island. They think that they would hate to share their island with “apron-string children” who would be too tied to their parents and home and wouldn’t appreciate the independence and adventure the island allows. The truth is that the children have been enjoying their freedom on the island so much that they’re not sure that they want to give it up yet to make friends with the local children, and in a way, they’re grateful to the quarantine for giving them this time to explore by themselves.

However, there are some strange things that the children have started to notice about the island. One day, Winkie’s soap on a rope disappears and reappears in a different place, strangely looking less used than when they last saw it. The children’s wishes also seem to be granted by a mysterious, unknown person. When they wish aloud for a book about castaways that they haven’t read before and book about birds so they know more about the birds they’ve been seeing, they soon find a wooden box that contains books matching that exact description. When they wish that they had more strawberries, they suddenly find more strawberries in their icebox that they can tell came from a store instead of the wild strawberry patch. Winkie has a bizarre encounter with a “dryad”, and the footprint of a 6-toed giant suddenly appears on the beach. Maybe they’re not as alone on the island as they thought, but who else is there with them?

The book is available to borrow and read for free online through Internet Archive (in audio form!)

My Reaction and Spoilers

Copies of this book are difficult to find now. It’s become a collector’s item, and copies go for hundreds of dollars on Amazon at the time of this writing. It’s a shame because it’s really a charming story, and I think it would really appeal to fans of Cottagecore. If I hadn’t found a copy on Internet Archive, I couldn’t even talk about this book at all.

There were many children’s book series published in the mid-20th century about children having adventures in the countryside and independent of their parents and guardians, like The Boxcar Children series or many of the books by Enid Blyton. Some of these books and series seem a little more realistic than others. Most require the children’s families to be at least middle-class or wealthy to be able to set the children up for their adventures. Some books, particularly the ones by Enid Blyton, feature parents who are preoccupied with their own problems or activities and seem less concerned with the children’s welfare than about getting the kids out of their hair. I thought The Invisible Island had a good balance of independence for the children and adult supervision.

The adults in this book know that the children have been camping before, so they have some basic camping skills, and they come to visit the children about every two days, to see how they’re doing and make sure they aren’t having any problems. The kids pride themselves on their independence (they brag that they’re “not apron-string children”), but at the same time, their parents do regularly check on them and are aware of developments on the island, sometimes more so than the children realize. The children confide to their parents some of the strange things they’ve noticed on the island, but not everything because they’re enjoying their adventure so much that “the castaways” don’t want to be “rescued.” Eventually, readers come to understand that the parents know who’s been hanging around the island and that the children are not in any danger.

Adults will probably realize pretty quickly that some of the neighbor children are also camping out in the area, and that these children are the ones moving things around, giving them things, and staging fantastical stunts, like the appearance of the “dryad” and the giant’s footprint. It’s just that they can’t introduce themselves to the Guthrie children yet because the quarantine is still on, and they have to stay mostly separate. As the quarantine ends, they’re able to let the Guthrie children see them and interact with them more, although the game doesn’t completely end until the official end of the quarantine and the surprise party they hold to celebrate. The book ends with the children and their new friends making plans for more adventures that summer.

One of the great things about this book is that it’s one of those children’s books that reference other children’s books. There are other vintage children’s books like this, where the child characters take their inspiration for their games of imagination from their favorite books. The books are named throughout the story, and presumably, child readers from the time when this book was originally printed, would also know these stories and identify with the children’s pretend play. The main favorite book of the Guthrie children is the classic The Swiss Family Robinson, which inspires them not just to camp out but to turn their camping trip into one big game of imagination in which they’re shipwrecked. Most of the things they do in the story are based around that concept, although some fantasy elements also creep in, like fairies and dryads and granted wishes, because the children also enjoy fantasy books and poems. The new friends they make in the area turn out to enjoy similar stories, so some of the mysterious incidents they stage are also based on those stories, further appealing to the children’s imaginations as well as their sense of adventure.

I wasn’t completely sure if the book that their new friends gave to the Guthrie children was meant to be a real book because there are many books with titles like The Smuggler’s Island, and I had trouble locating a book from before 1948 with that exact title. Since the other books and poems they reference are real, The Smuggler’s Island might be real, too. If anybody knows what it is and who wrote it, please let me know. On the other hand, that book, because the children say they’ve never read it before, might just be invented by the author to represent that general genre of children’s fiction.

Other real books, stories, and poems referenced by this story include The Mysterious Island by Jules Verne (which is a sequel to both his Twenty Thousand Leagues Under the Sea and In Search of the Castaways), The Hunting of the Snark by Lewis Carroll (at one point, David recites the lines from the poem, “His intimate friends called him “Candle-ends”, And his enemies “Toasted-cheese”), and the poem Overheard on a Saltmarsh by Harold Munro (which was the inspiration for the dryad scene because it contains a nymph and a goblin and a necklace of green glass beads).

The concept of a quarantine probably would have made this an excellent story for the coronavirus pandemic, but the setting is idyllic and enchanting for any time. The children are clever in the way they set up their camp, trying to keep it as secret as possible. Their island also includes a spring (which is safe to drink from) and a cave, and they start building a stone hut in this book.

There’s only one thing I can think of to complain about in this book, and that’s the concept of the “savages.” When the parents describe themselves as “savages” when they visit the children, they’re playing on themes from earlier vintage books with islands and shipwrecks. “Natives” and “savages” in those stories can either be helpful or, more commonly, threats to the castaways. I’ve complained about this before in previous book reviews with similar themes because there are stereotypes around these generic “natives” and “savages”, and modern children should be taught not to talk about people in those ways. However, there is no malice behind it in this story. The characters aren’t making fun of anyone or disparaging anybody for being “primitive.” It’s just that they’re playing a game of imagination built on these earlier stories, and they’re using this concept as a plot device to work themselves into the story as something other than visiting parents, preserving both the children’s sense of independence and the imaginary world of the children’s game. Anybody who can understand that should be fine with this book.

My only other complaint is that this book is so rare and so long out of print. I really do think it would appeal to modern audiences, especially fans of cottagecore.