Heero knows the extent to which Duo is lying, when he says he doesn't think. There are many things that Duo doesn't think about - as Preventer's resident thorn in Maxwell's side, Heero be the first to point that out. Despite that indisputable fact, that uncanny ability of his to survive can only be explained by a sharp mind.

It would be something of a relief that Duo's thoughts are aligning with his, were it not for that slight nudge - it should have been feather light, to Heero Yuy - knocking him off-center. Heero catches himself with a single step back, and nothing more.

He hadn't yet noticed the lack of rats. Duo would. He's even more unsettled than before.

"We should find shelter."