The Tower. For all the trouble it's caused, Firo finds he's not too curious about the thing itself. It was there, it's relentlessly tormented his friend, and now it's going. Good fucking riddance. If the thing and it's influence on Roland are going to be gone, then all of Firo's questions about it really aren't too important.

He rocks a bit with the unexpected weight when Roland leans against him, but he's quick to right himself.

For the answer to Roland's question, Firo hardly has to think. Not because it's not an important question, but because the answer is very plain to him. "Of course there is. I can't tell you what it is--only you can figure out what you wanna do. But once this is all over, I can help you, if you want."