Omri's birthday present from his best friend, Patrick, isn't what he really wanted. He received other gifts that are much more exciting--a skateboard, a mysterious cupboard from his brother, and, from his mother, a very old key that fits the cupboard's lock. By the end of the day Omri has almost forgotten the three-inch-high Indian Patrick gave him. But just before going to bed, Omri decides to put the Indian in the cupboard. He shuts the door, locks...

Magic Tree House, #37. A Merlin mission. When Merlin is weighed down by sorrows, Jack and Annie travel back to feudal Japan to learn one of the four secrets of happiness.