Mercenary

Starts straight in the action, as a princess is trying to escape when her uncle decides to take over the kingdom.
It's pretty much one chase scene after another, and they conveniently seem to meet someone helpful at each point, until there's quite a crowd trying to get the princess to a safe place.
There's not much in the way of character or plot development, but the story moves along at a good pace (ending seems a bit rushed), and it's a quick read.
This is book 1 of 5, and the ending doesn't really resolve anything, so will see if book 2 improves things.