Only so they could get them back in the end. And it wan'st like-- "we're going to sacrifice these lives to the Unclean to help her ritual," either.

[he grumbles, somewhat bitterly, as he imagines himself shoving Andersen into a gunky, sludgy pool]

[but that aside--]

I've wondered that, too. But I've heard Craftly say that his only solace as Innkeeper is knowing that the same soul can't be drawn here twice to partake in the ritual.