He doesn't care at all whether this space will be "snooped" into something that shouldn't be spied on, severely polluted and damaged, and disintegrated from the inside out.
Lumian walked around the hollow of the quarry with a carbide lamp and a revolver. He didn't see any other shadows, nor anything related to his past.
He was a little disappointed, and said to Franka: "I haven't found the original me."