​"Scream and hit absolutely anything around you, Rex! Draw this killing machine's attention away from me right this instant!"​Zac bellowed the command, his voice thundering over the heavy, ragged breathing of the giant mutant. The genius doctor's back was pressed tightly against the severely cracked concrete wall. He desperately needed a few crucial seconds to shift his position toward the corner near the vault doors. That was exactly where the six highly pressurized oxygen tanks stood waiting for the touch of his lethal concoction.​Rex widened his eyes from the pitch-black end of the corridor. The scrawny mechanic's face turned deathly pale, fully realizing that obeying the command was functionally equivalent to inviting the grim reaper directly toward him. His fierce loyalty to Zac waged a brutal war against the pure, unadulterated terror squeezing his chest.​"Hey, you incredibly ugly, eyeless freak!" Rex shrieked hysterically, snatching up his completely empty assault rifle from