The Diamond in the Window by Jane Langton, 1962.

Eleanor and Edward Hall are orphans who live with their Aunt Lily and Uncle Frederick in their family’s big but somewhat shabby old house in Concord, Massachusetts. The family has lived there for generations, and they are intellectuals with a particular interest in the literary history of Concord. Uncle Freddy is obsessed with Ralph Waldo Emerson and Henry Thoreau, although he doesn’t share Eleanor’s love of Louisa May Alcott. When a couple of the town leaders threaten to take the family’s house because of unpaid back taxes and to destroy it because they think it’s an eyesore, the children come to learn that their house holds more secrets and history than anyone knows.

As Eleanor and Edward look at the house from the outside, they suddenly realize that there’s an window at the top of the house that’s shaped like a key and made of colored glass. They’ve never seen that window from the inside of the house, so there must be a secret room! The children search the attic and find a trap door that they never realized was there before. When they look into the hidden room, they find a pair of children’s beds and toys.

The children ask Aunt Lily about the room, and she sadly admits that she hadn’t wanted to tell them about it. Then, she begins to explain more about the family’s history and the aunt and uncle the children never knew. Aunt Lily is their father’s sister, and Uncle Freddy is their brother, but there were once two more children in the family, called Ned and Nora. Eleanor and Edward were named after them, but Ned and Nora mysteriously disappeared years ago. Aunt Lily still believes and hopes that, somehow, they will return someday, so she has always kept their room ready for them.

When she shows the children pictures of Ned and Nora in the family’s album, they also see a picture of a young man in a turban and ask about him. Aunt Lily says that the man is Prince Krishna, son of the Maharajah of Mandracore. Their Uncle Freddy has written books about Emerson and Thoreau and was once considered an expert on the Transcendentalists. People who were interested in Transcendentalism, like Prince Krishna, used to come and study with him. Aunt Lily wasn’t really interested in Transcendentalism, but she explains, “I think he said that the Transcendentalists believed that men’s minds were very wonderful, and that they could know all kinds of important things without being taught about them through their eyes and ears –because they were part of something called an Over-Soul.” Eddy approves of this concept because it sounds like it’s about learning without school, and he approves of anything that involves no school.

Everyone was fond of Prince Krishna while he lived and studied with the family, and Aunt Lily said that he used to make up fun games for Ned and Nora, like treasure hunts with real jewels as prizes because the prince was very rich. The children get the sense that Aunt Lily was in love with Prince Krishna, but he also vanished shortly after Ned and Nora did. When they discovered that Ned and Nora were missing from their beds one morning, Prince Krishna dashed around, looking for them, but suddenly, he was also gone, and no one knew where or how.

Eleanor and Eddy return to Ned and Nora’s room upstairs to have another look at it, and they find a mysterious poem called “Transcendentalist Treasure.” From the handwriting, which matches a note that Prince Krishna wrote to Ned and Nora with a present he gave them, Eleanor and Eddy realize that Prince Krishna also wrote the poem. Since the poem seems to be some kind of treasure hunt, the children think that it was probably part of the treasure hunts that Prince Krishna used to make for Ned and Nora. They try to figure out what the clues in the poem mean and what it might lead to, hoping that it might be the jewels that Aunt Lily told them about and which haven’t been seen in the house since Ned, Nora, and Prince Krishna vanished. If they could find those jewels, they could pay the back taxes and save their house!

However, they don’t really begin to grasp the full importance of the poem until they ask Aunt Lily if they can spend the night in Ned and Nora’s room. During the night, they have a bizarre dream, in which they’re climbing an elm tree with Ned and Nora and find a harp, which is something that was mentioned in the poem. A dangerous wind blows them out of the tree, and they wake up. They could have believed that it was only a dream except that they realize that they both dreamed the same thing, Eleanor has bruises and a scratch on her leg that she got from falling out of the dream tree, and Eddy has located the harp in Ned and Nora’s bedroom.

They show the harp to Aunt Lily, and she says that Prince Krishna had given it to Ned and Nora years ago, hanging it in a tree so that they would hear the wind blowing across it. The poem and the dreams that Eleanor and Eddy have seem to be hinting at the treasure hunts that Prince Krishna had with Ned and Nora. Eleanor and Eddy begin to think that solving the riddles in the poem may not only lead them to the jewels but to the truth about what happened to Ned, Nora, and Prince Krishna.

The book is available to borrow and read for free online through Internet Archive.

My Reaction and Some Spoilers

The book introduces the concept of Transcendentalism. I remember my English and history teachers discussing the Transcendentalists when I was in high school, but for some reason, they didn’t appeal to me back then, even though I went through a kind of phase where I was interested in metaphysical topics. I think my teachers put a lot of emphasize on their interest in nature, and I wasn’t an outdoorsy person. The background information in this story revived old memories of my high school classes and actually clarified a couple of points for me. The kids visit real places in Concord, Massachusetts, including the house where Louisa May Alcott once lived, and the book is full of discussions of literary figures and their lives and quotations from their works.

The children’s surrealist dreams connect to real objects in their lives and in the history of the family and their house. The dreams follow the poem that Prince Krishna left behind, and in each of their dreams, they see Ned and Nora up ahead of them, so the Eleanor and Edward realize that they’re following their path. The poem and the dream reference pieces of Transcendental literature and thought, and the children’s uncle explains the references throughout the story.

Many of the dreams also show the children’s personal and mental growth. In one dream, the children examine different images of their future selves, seeing how different choices they make can lead their lives in different directions, and they make up their minds which version of themselves they want to aim to be. In another dream, the children are trapped in a nautilus shell, and they discover that they have to think their way out of it. The thoughts they have help them work their way through each chamber of the nautilus, but they have to use thoughts with increasing depth and complexity to make progress. At first, remembering nursery rhymes is enough to help them move forward, but as they go further, they have to concentrate on more complex poems and higher-level moral and philosophical thoughts.

Although the dreams the children have are very surreal, and readers have no idea where they might be leading, the children do find Prince Krishna and their missing aunt and uncle. When the three of them return, Prince Krishna does explain where they were the entire time they were missing. He doesn’t offer a detailed explanation because they were trapped in a sort of magical/metaphysical prison, but he does explain who trapped them and why. There is a villain in the story, but it takes a while to grasp who and what the villain is because readers don’t really see it/him in his true form and don’t understand who he is and what his motives are until Prince Krishna explains. Eleanor and Eddy end up understanding more than Aunt Lily and Uncle Freddy do in the end, but finding Ned and Nora, Prince Krishna, and Prince Krishna’s treasure changes everyone’s lives for the better. Throughout the book, Uncle Freddy is mentally unbalanced, eccentric at the best of times and outright crazy at others. Local people want to see him committed to an asylum, but his mind was unbalanced by Ned and Nora’s disappearance. Once they’re back, he regains his senses.

The author wanted to write realistic children as her protagonists to appeal to real children. Eleanor and Eddy have their own insecurities and dreams which play into their characters all through the book and appear in the visions of the futures and choices they have to make in their dreams.