Instruct: Classify a given review into positive or negative sentiment.
Query: Fantastic! This is why he is the greatest detective in comis

Batman goes under cover as a patient in Arkham to catch a serial killer. While inside, Nightwing (Dick Grayson, the first Robin) tries to break him out. These two former partners team up once again to catch the killer in this collection of Batman: Shadow of the Bat #1-4. Outstanding storytelling and art by some of comics greatest talent.