SureFire is an UltraAgent on a mission to prove herself. If she can manage to bring down the elusive thief, Raven, she would earn a name for herself as one of the top agents in UltraSecurity. But, or course, nothing ever works out the way our characters plan. Raven is more than just transhuman - he's something else entirely. And he has a mission of his own.

It's too bad that an old friend of Raven's has a different idea - and of course SureFire gets roped right in (it wouldn't be a very good story if she didn't). SureFire and Raven quickly discover that there is more to each other than either or them first thought. With a couple of Aztec gods and a little time traveling thrown in, they grow close very quickly. But with the rest of UltraSecurity hot on their tail, they may not have time to see if their new feelings are going to go anywhere.

This was a fantastic take on the whole "mutant" human storyline. I love the twist that the Aztec mythology added to everything. With a new surprise around every chapter - the book remained interesting up until the very end.