Transformers Prime: Bulkhead's Biggest Battle: Book 3

Paperback
Roll out with Optimus Prime, Bumblebee and the rest of the heroic Autobots as they battle the evil Decepticons. An ancient Energon Harvester is discovered in a museum, but can the Autobots recover it before the Decepticons? Meanwhile, some illegal street car racing spells trouble for Jack and Arcee.