A Messiah, a first disciple, and a rapture. Check, check, and double-check. Penumbra is, right now, teetering right on the boundary between charmingly weird old guy and disturbingly weird old guy. Two things tip the scales toward charm: First, his wry smile, which is not the smile of the disturbed, and micromuscles don’t lie. Second, the look in Kat’s eyes. She’s enthralled. I guess people believe weirder things than this, right? Presidents and popes believe weirder things than this.
Source: Mr. Penumbra's 24-Hour Bookstore (2012), Chapter 15 “The Strangest Clerk in Five Hundred Years” (p. 136)