Grandma lives next door to Max and Ruby and is totally devoted to both of them. grandma is full of surprises. No matter what the kids are into, Grandma is able to relate to them on their terms. Although Max never doubts that Grandma will understand just what he needs and when, Ruby often underestimates Grandma's capacity for fun, and is surprised when Grandma dresses up like a vampire or approves of Max's Earthworm Cake with Red Hot Marshmallow Squirters on it.