Curiosity satisfied, Delta nods in appreciation - and makes no remark on the sudden change in demeanor as soon as Loki realizes he's been observed. He'll definitely have to check out that particular book later, but for now the curiosity is purely academnic.

"Is it in reasonably good condition? There have been several loose pages here and there on the shelves, and while complete restoration of every book may be impossible I would like to reunite them with their original bindings whenever possible."