This week’s Unshelved Book Club features books about an improbably romance at a fantasy convention, connecting the dots on today’s environmental crises, an octopus who makes a terrible babysitter, an epic road trip to see thirty baseball games, a boy looking into the disappearance of girls in Portland, Oregon, astronauts sent to Mars to exterminate cockroaches, hilarious sex tips, and the Japanese art of wrapping things in fabric.