This juvenile fantasy is more homework on my part to decide whether I want to subscribe to The Big Meow. The answer is no.
On the plus side: cute cat conceits, nice use of time travel and historical personages.
Negatives: too much exposition marred the pacing, I guessed the big 'plot twist' early on, a random character/species brought in Deus Ex Machina fashion to resolve the main crisis and, apparently, tie this more strongly to an earlier volume.
Not compelling enough that I want to seek out more, so, that's it for me.