The Mighty World of Marvel #33

In "They Dwell in the Depths!", the Hulk is dragged into the subterranean realm of Tyrannus, once a mighty ruler now reduced to frailty by his separation from the Fountain of Youth. With Tyrannus desperate to reclaim his power and holding Rick Jones, Betty Ross, and Glen Talbot captive, the Hulk must decide whether to aid his ancient enemy—especially when Tyrannus reveals he knows Bruce Banner. The threat of Mole Man’s Octo-Sapien robot looms, and as the battle erupts, the Hulk’s rage is met with a sudden, shocking turn that plunges him into the Fountain itself.

In "The Stage is Set!", the Secret Empire’s Number Five and Number Seven enlist Boomerang to steal the Orion missile plans, sending him straight to Gamma Base. As Rick Jones, Betty Ross, and Glen Talbot emerge from the underground realm of the Mole Man and Tyrannus, Boomerang captures Betty, using her as leverage. With the surface under siege and the underground war raging, a desperate Hulk—still trapped in the subterranean kingdom—must navigate chaos and conflicting forces to find a way back, all while the fate of the missile plans hangs in the balance.