Cil blinked, suprised for a moment. The expression vanished moments later, however, as he ran his eyes over the papers strewn across the desk. Deciding that, while odd, the papers weren't really that big a deal he turned instead to look at the book. Narrowing his eyes at the lock on the book - that, in fact, come to think of it, seemed rather like a diary of some description Cil focused his attention on the two keys that had occupied the desk alongside it. Making a slight humming noise to himself Cil left them for the moment, searching the rest of the desk. His eyes fell on the safe.
Of course it was locked, as he would've expected, but still.
==> Cil: Attempt to open both safe and diary with the two keys
Trying to open the two of them seemed like the best idea, all things considered. Even if it didn't work it was worth a shot.