You Only Spy Twice (Agent Harrier) by Ben Sanders

Canine spy Agent Harrier must discover the traitor in the BARK intelligence agency stealing top-secret files. But something's happening to the book itself . . . whole pages are repeating, and an ink-deleting weapon might wipe everything out!

Agent Harrier is a series of metafictional graphic novels featuring standalone spy capers, each with a hilarious twist and loaded with puns, slapstick, and unforgettable comic characters!