The enormous gap, which was supposed to fit at least two trucks and would lead them onto the lower floors, now got sealed with concrete. They gave it a good taping, touching, to get a sense of its sturdiness. The thing didn’t even make a sound when they knocked into it, telling them it was several layers thick. Not a single area left weakened. Which meant the only entrance to the underground was that one locked door. “Of course, they also sealed the way here.” Spartacus grumbled, throwing his hands in the air in surrender. The guy no longer cared to lower his voice, having lost his thrill for espionage. Now, all they wanted was to find out whatever it was hiding in there. Since the mystery was killing them from the inside. “And the markings here seem recent.” Max, on the other hand,

