Billy Chan Goes to the World of the Felidavians: A Little Book of BIG Choices - Billy the Chimera Hunter, #9

Normally I get my missions from the CIA, when my parents let me. Today, though, the elusive billionaire and exotic chimera collector, Mr. Roahr, has paid me a visit. He and his foster daughter, Cassie, need my help. Cassie hasn't heard from her family in weeks, and she can't get home unless I use my powers to take her there. This is my biggest, scariest adventure yet! I'm going to a world of felidavians (great big flying cats) and I'm with Cassie.
We all know how unpredictable she is. I DEFINITELY need your help. You decide how my story will go!