Moundshroud is a character from the children's book "The Halloween Tree" by Ray Bradbury. He is depicted as a mysterious figure who guides a group of children on a journey through time and space to explore the origins of Halloween. Moundshroud embodies the spirit of the holiday, emphasizing themes of friendship, courage, and the importance of remembering the past. Throughout their adventure, Moundshroud helps the children understand various cultural traditions associated with Halloween, including ancient rituals and celebrations. His character serves as a bridge between the past and present, illustrating how Halloween has evolved over time while maintaining its core significance in celebrating life and death.