"Spreading some of it down the riverbed, using it to make the roadway that we drove up on. Some of it is stored above to backfill various ventilation shafts. Some is being crushed into sand for a trap which I will explain later." Goto Dengo leads them back in the direction of the main vault, but they pass by the ladder and turn into another drift, then another. Then the drifts become narrow and cramped again, like the one at the entrance. "Please forgive me for leading you into what seems like a three-dimensional maze," Goto Dengo says. "This part of Golgotha is intentionally confusing. If a thief ever manages to break into the fool’s chamber from above, he will expect to find a drift through which the material was loaded into it. We have left one there for him to find—a false drift that seems to lead away toward the Tojo River. Actually, a whole complex of false drifts and shafts that will all be demolished by dynamite when we are finished. It will be so difficult, not to mention dangerous, for the thief to work his way through so much rotten rock, that he will probably be satisfied with what he finds in the fool’s chamber."