Geronimo Stilton - 10 Book Boxset (Series 3) Ages 5-7 Geronimo Stilton is not strong, he's not bold, and he's DEFINITELY not brave. Adventure? What's wrong with staying at home with a box of cheesy chews? Too bad the rest of his family don't agree.  The series is perfect for both avid and reluctant readers aged 5-7 due to its expressive typeset, fun illustrations, and humorous stories. Titles in this set: The Mouse Island Marathon The Temple of the Fire Ruby Shipwreck on Pirate Island Merry Christmas Geronimo The Mystery of the Roaring Rat Surfs Up Geronimo The Mona Mouse Code The Ghost of the Underground The Search for Sunken Treasure A Cheese Coloured Camper Van