Don't Shoot the Messenger - J. A. Lenay - Bog

Despite how it might seem, being a messenger for the feared sea-demon pirate, Admiral Satrasi, infamous far and wide for having an entire fleet of raiding vessels who answer to him alone, is a relatively safe job. After all, no one knowingly crosses the Admiral. Right? The most recent captain looking to join his fleet hasn't gotten that bulletin yet. He's going to find exactly what happens when someone interferes with the Admiral's favorite messenger.