Mr. Penumbra's 24-Hour Bookstore (Mr. Penumbra's 24-Hour Bookstore, #1)

by Robin Sloan

This is something I haven’t done in more than a decade. The last letter I wrote in ink on paper was a mushy missive to my long-distance pseudo-girlfriend in the gold-tinted week after science camp. I was thirteen. Leslie Murdoch never wrote back.