The Pirate's Revenge - The Cats of Old San Juan, #1

Campeón, an orange tiger-striped kitten, has always wanted to be a great hero like the legendary cats of El Morro in Old San Juan. Sadly, the world no longer needs fierce swashbucklers or acts of derring-do, and the cats of El Morro barely remember their legacy. This all changes when Campeón stumbles upon a band of time-traveling pirates digging for a treasure map in a mysterious mangrove forest. He soon discovers that they are crew members of the evil pirate Captain Kitty the Kid, who is on a mission to conquer El Morro, vanquish the Cats of the Wall, and steal a magic suit of armor buried within a long-forgotten part of the cat kingdom.
Campeón and his friends, Cali, a charismatic calico, and Alfie, an asthmatic angora, must work together to stop the pirates and test the strength of their courage when all seems lost.