This weekend, southern Vermont becomes a hotbed of exciting experimental theater from Vermont Performance Lab and Sandglass Theater.

Not What Happened (pictured) is a new piece from three-time Obie award-winning writer/director/performer Ain Gordon. The piece includes images from Marlboro photographer Forrest Holzapfel. Triangle is a puppet play from Sandglass, by Brattleboro’s Patrick Keppel, with music by New Yorker Bradley Kemp.

Not What Happened: June 14-15, $15/general, $10/students, 8 p.m., New England Youth Theater, 100 Flat St., Brattleboro, (802) 361-3361, www.vermontperformancelab.org/events.

Triangle: June 15-16, $15/general, $10/students, 5 p.m., Sandglass Theater, Kimball Hill Road, Putney, (802) 579-6400, www.trianglepuppetplay.com/events.