Interesting Times (Interesting Times #1)

Oliver Jones is the most dangerous man in the world.

At least, someone out there believes he is. Oliver himself thought he was one of the world's duller men, working as a financial analyst in San Francisco by day and eating microwave dinners by himself every night. That was until he befriended a stray cat, and then one lonely night the cat began to speak to him.

Now Oliver is on the run, hunted by an inhuman assassin whose client believes Oliver is the "Destroyer of Worlds." His only hope for survival rests with a trio of unlikely new allies: A werewolf with a fondness for Hawaiian shirts, an emotionless little girl who is much, much older than she appears, and a genocidal gunfighter with a serious anger management problem.

And there's that talking cat, of course. But that's a little harder to explain...