As to that second question, Cao Pi's eyes shift rather deliberately toward Rosinante's tall figure over there. He doesn't know who died and came back this most recent round, but he sure as hell knows that dude did once and could tell you all about it. "...you'll have to ask them, I haven't personally pried into their experiences."

But the rest, he knows about. "It was to connect the Lighthouse Keeper, who is more or less the one who controls the resets, to the network of tablets. She was out of contact and needed the access. It was a worthy cause, but it came at great price. The man who planned and organized the whole thing is dead, and has not returned. The others were divided into parties for protection. They disappeared in the forest, and given the savage spirits which attacked us here, it is likely they were killed by the same."