Incredible Hulk Annual #5

Hulk has an untimely brush with an associate of Xemnu’s – Diablo! Story takes places this between Hulk #198-199. The living Titan known as Xemnu operates from within a secret laboratory beneath a lake in Colorado. Sensing the presence of the incredible Hulk nearby, he creates simulacrums of five powerful beings that once threatened the Earth and sends them to defeat the Hulk. The Hulk meanwhile, wandering through the forests accidentally trespasses onto a U.S. Army proving ground. He fights through a squadron of soldiers before coming face to face with the first of Xemnu’s minions – Diablo! Key issue: First appearance of Colonel John Paul « Hard-Butt » Harrison and Harrison’s Hardheads.