Geronimo Stilton who works as an editor and journalist at The Rodent's Gazette is exhausted and totally tired due to his work and is in a desperate need of a break and preferably a vacation to a nice peaceful place. His wish is fulfilled when his friend, Petunia Pretty Paws, invites him to the White Bay in this story, Save The White Whale!: 45 (Geronimo Stilton #45).

Geronimo's joy knows no bounds and he readily accepts this invitation in an anticipation of a nice, peaceful holiday. Little does he know that his holiday to the White Bay will yield him more than expected. Their plans go haywire and the holiday starts to get terrible. Just before Geronimo and Petunia would give up hopes, they come across a giant white whale who is in an urgent need for a helper. An anticipation of a great adventure lifts up their hope of a good holiday.

Will Geronimo and Petunia be able to help the whale and save it or will they land up in trouble themselves is the crux of the story. Save The White Whale!: 45 (Geronimo Stilton #45) was published by Scholastic Inc. in the year 2011. It is available in the paperback format.