There wasn't another water source for you to make a lift.

[You're welcome, he means. Even if it was a bit close. It was a nice closeness, brief as it was, but that too is a discussion for later.

Alucard turns a few pages of the Index, tutting softly as he tries to find the right shelf location for where the books are. Then a few more pages and...]

Good, it's on this floor. And extensive, although I suspect that part isn't especially shocking given who we're dealing with.