Mad Doctor

What is concealed in Hellingen’s past? What’s his full name? What happened when the young “mad doctor” was working at the “Elsewhere” HQ? While Zagor is following the scientist’s tracks, agent Jesse tells him about some dramatic events that happened 30 years ago, the events that urged Hellinger to build Titan! Meanwhile, on Mount Naatani, the threat that the evil genius programmed many years ago is looming large, since it was kickstarted once again by the reawakening of the machines, caused by the return of the Akkronians...