Balloon

Balloon is a royal guard in Diary of a Neapolitan Mastiff.

Personality
Balloon is cunning and agile cat, mysterious, authoritative and caring, and good friends with Meela.

Book series
Balloon doesn't play a major role in the Original Quadrilogy. She ranked as fourth in PK Laws, but in the absense of Ava, became third. She was briefly promoted to second when William demoted Danny to third, before eventually being restored to third, and then restored to fourth upon the return of Ava. In 3 AFD, she helped Ava and the other royal guards in their quest to find Pally. Weeks later, at the very beginning of the Zecoran crisis, during a meeting with the royal guards, Balloon, Meela, Kate and Magic propose negotiations with the Zecoran leader Zeco. Danny and William disagree and suggest arresting him instead, to which Ava agrees.