He picks the beads up, looking them over, wondering what they're doing here.Heading up the stairs, he feels the smell of gunpowder grow fainter, but there's still enough of a trail to lead him out onto the castle grounds. There, he finds more fallen grains of powder, but little else. Looking around the larger area, however, he spots something concealed in a bush: A necklace of prayer beads, the type used by monks and other highly religious people.
(Btw, I'm assuming he cleaned his face before he left the inn.)