Name: Ghosts of Yesterday
ISBN: 9780345497987

Alan Dean Foster

When Ghost I is sent to investigate a mammoth robotic being found beneath the Arctic ice, a mishap maroons them and their distress beacon reaches the Autobots, the alien race they were seeking.

Ghosts of Yesterday

Sam Witwicky's college career is interrupted when he must help the Autobots to save the Earth once more from Megatron and his Decepticon army, who have returned stronger than ever, accompanied by Megatron's master, the Fallen.