There was someone else who shared her concerns regarding the earthquakes. Kaiba had inspected the passageways after the initial clusters and hadn't found anything he considered a structural flaw or issue, but the fact that the tremors could still occur and had meant regular check ups.

It had been uneventful so far, but eventually he started to hear the metallic sound echoing throughout the cave. Frowning a bit, he wondered at first if this was not some purposefully destructive element here to ruin his work- that's just the sort of paranoia he lives with. Hastening to the source, he found something entirely different.

"Well- this is a new development."