Something within him, something once untouched, stirs, and Neil suppresses a shudder. Tries to think back to the clues, to the tools that might have been used. Not the surgeon. Definitely not the surgeon.

Except nothing really comes to him. Nothing except that vision, that walk through water.

Actually, wait.

"I dreamed--" He pauses, shifting words around. "I think it was a saw with a serrated blade."