Thanksgiving on Thursday by Mary Pope Osborne

The tree house takes the siblings to 1621 Plymouth, where they help prepare for the very first Thanksgiving. They meet Pilgrims and Native Americans, learning about their struggles, cooperation, and gratitude. Jack and Annie take part in the feast and reflect on what it truly means to give thanks. The story brings early American history to life through simple moments and shared traditions. It’s a warm, thoughtful celebration of unity.