WARNING: DO NOT GIVE THIS BOOK TO YOUR OWN GRANDMA. SHE MIGHT GET IDEAS...
Danger is her middle name!
Ollie's dad is missing - but Grandma Dangerous is on the case! She has a hot-air balloon, thirty packets of biscuits and a pooch with magical powers (she says).
But as they sail through the skies, Ollie realizes they're not just on a rescue mission...
Grandma's on the run!
