That the place Yussa visited ended up being extremely dangerous is somehow not the slightest bit surprising. Caleb is glad, now, that there hadn't been an incident until he was safely home, at least.

"I read about it once, just a little. I can understand why you were interested." It does seem like a fascinating place, with much potential for research. He's curious now about what property it is that enriches the soil, and whether those minerals could be transmuted and still retain it.

"Surely you were not looking for these restorative solutions for yourself, though," he flirts, grinning as he nudges his leg against Yussa's beneath the water. "Because that would be unnecessary."