Pied Piper them. [God, he's so dumb. She knows what he means, though, and she frowns in thought.]

Okay, but... what'll keep them from just coming back? And building a new dam. -- oh! We could build a new dam? Like, a better dam. [Which is exactly what he said, but they're not houses. It can't be that hard to just slap a mound of sticks together, right.] Can you... look at how they constructed it?