The Isle of Blood

Rick Yancey won the Michael L. Printz Award for the stunning first entry in his Monstrumologist saga. In the series' third entry, Will Henry is left behind as Dr. Warthrop and his eager new assistant Arkwright embark on a quest to find the “Holy Grail of Monstrumology.” But when Arkwright returns with news of the doctor's demise, Will sets off on his own quest, to the Isle of Blood, to determine the truth.
“Yancey takes ... gore and violence ... to thrilling new levels in this sophisticated tale.”-School Library Journal on The Monstrumologist