Eunice Korczak

Grant, Will, Mady, Garrett,and Leyton accidentally travel through time to see Grandma as a kid. Grandma's present house is on a magical node, which facilitates their time travel. They meet Grandma as a kid and even go Christmas fooling with her, but cannot reveal who they are because they "Must not disrupt the flow of time." Grayson helps cover the deed. This book was written about and for my grandchildren who have extensive vocabularies. Preteen with some big words. About 10,000 words.