Geronimo is on a road trip to the coldest part of Mouse Island! Grandfather William is desperate to publish a guide book to Ratzikistan, and he’s asked the whole family to help. He’s sure it’ll be a bestseller. If they ever manage to get there, that is … About the Geronimo Stilton series: Geronimo Stilton is a bestselling children’s series with a dedicated international fan base. As seen on Netflix, the series follows the adventures of the Geronimo Stilton the fa-mouse journalist, as he searches for the next hot scoop. With illustrations and fun fonts throughout, Geronimo Stilton is perfect for reluctant readers aged 5+ years.