He looked up, startled, and dropped his book. "Oh, I. Well. I just brought in some of my old favorites," he said, gesturing towards the door nearby, through which could be seen a heavily laden bookshelf. And be assured that all the walls were lined with similarly stuffed shelves. "And, oh, this one," he added, picking his discarded one from his lap, "is Walden."
He flashed a shy smile up at Crowley. "Where've you been?" he asked softly.