Intronaut, Scale the Summit, Mouth of the Architect, Omotai, Oceans of Slumber Fitzgerald’s June 28, 2013 For Houston’s hard-rock and metal fans, there was no better place to be on Friday night than Fitzgerald’s. Downstairs, the old club hosted rowdy hellraisers Valient Thorr and Gypsyhawk, whose heavy thump bled through…