Just when you thought it was safe to bask in the increasingly temperate weather, the TPL takes you back to our (semi-) Arctic antecedents, with tales both fictional and non-fictional of the frozen north. Douglas Hunter recounts the rivalry between Samuel de Champlain and his fellow 17th-century explorer Henry Hudson in God’s Mercies; James Raffan holds forth on Sir George Simpson, legendary ruler of the Hudson’s Bay Company, in Emperor of the North. May 8. Elizabeth Hay, meanwhile, explores life at a Yellowknife radio station, in the book that won her last year’s Giller, Late Nights on Air. May 29. Q&As follow.—Brent Ledger