By Budiansky, Perlin, Akin and Garvey. The stories that laid the groundwork for the entire Transformers Universe continue, as the Autobots mourn the death of their leader, Optimus Prime! From the human threat of the Mechanic, to the giant menace of Trypticon - who will lead them in their darkest hour? Now in their 20th anniversary year! Collects Transformers (U.S.) #25-30. Cover by Andrew Wildman. SC, 7x10, 144pg, FC.