Jack Batten: Launching the seventh book in his Crang Mystery Series. Dora Keough, 141 Danforth Ave., Toronto. 5:30 p.m. FreeSina Queyras: Launching the book My Ariel. Hosted by Lori Cayer. McNally Robinson, 1120 Grant Ave., Winnipeg. 7:30 p.m. FreeS.M. Beiko: Toronto launch for Scion of the Fox. Type Books, 883 Queen St. W., Toronto. 7 p.m. FreeDave Butler: Reading from the book Full Curl. Whyte Museum of the Canadian Rockies, 111 Bear St., Banff, Alb.