This is the 5th book in the Vampirates series. I don't want to say too much about what happens, but once again, we're following Grace and Connor as they deal with the secrets they learned in the last book--The Blood Captain. Each of them has been sent on a mission to help end a situation that is spiraling out of control. They both have issues they need to overcome which may prove impossible as the stakes get higher.
I did enjoy returning to Grace and Connor's lives as the 5th book got started. It ended on a cliffhanger of sorts, which means there will at least be a 6th. There is a lot of action, adventure, pirates, and vampires to satisfy anyone looking for any combination.