Nora and the map of mayhem

When Atticus and Autumn's dads leave them with their eccentric great-grandmother Nora for the weekend, they're hoping for a few days scoffing biscuits and playing video games. But when Nora's around, nothing ever goes quite to plan. After a stranger from Nora's past leaves a menacing note pinned to her front door, Atticus and Autumn are swept away on a hair-raising adventure dodging snot-flinging sea-monsters, battling thunderous electrosquibs, and trying to escape from a very flappy goose!