In this exclusive Sparkcast prequel, Thomas is lured to Shawn's house with Transformers audio cassette books and find himself falling into the Transformers media rabbit-hole, where Decepticons only consist of Megatron & and a Soundwave/Starscream hybrid, and, oh yeah, DECEPTICONS KILL HUMANS IN A CHILDREN'S BOOK! Witness the horror of worldwide devastation in Satellite of Doom, and learn the dramatic and truly real tale of the origins of Sparkcast!

Link:

Satellite Of Doom - Book Scans & Audio Recording