Durham 224 for 7 (Stone 5-43) trail Warwickshire 310 (Trott 79, Wright 54*, McCarthy 4-58) by 86 runs
A devastating spell from Olly Stone helped Warwickshire end day two of their County Championship match against Durham at Edgbaston on top.
With Durham reaching 152 for 3 after tea, Stone replaced Keith Barker at the Pavilion End and recorded his third five -wicket haul of the season with a destructive spell of 8-2-13-4.
Stone removed Will Smith for 46 when he edged behind to Tim Ambrose and nine balls later Axar Patel followed for 0 after playing onto his stumps. Stone then trapped Michael Richardson and Stuart Poynter lbw two balls apart in a double-wicket maiden.
The hosts' tails were up, but Durham captain Paul Collingwood and Barry McCarthy dug deep into the early evening with a 59-run partnership from 17 overs that left the visitors on 224 for 7, 86 behind.
With the sun shining over Edgbaston, conditions were a far cry from the gloomy day one, giving the batsmen more encouragement to score.
Warwickshire's overnight pair of Jonathan Trott and Jeetan Patel did exactly that with five fours in the first 14 balls, before Trott - looking to score his 46th first-class hundred - was bowled for 79 by Matthew Salisbury in the third over of the morning.
Patel followed six overs later, bowled by McCarthy for 26, leaving the Bears languishing on 224 for 7, but they were reprieved by an aggressive ninth-wicket partnership.
Chris Wright, with 54 off 72 balls, and Stone struck an entertaining 86 off 121 balls, which featured nine fours and a six and helped secured a valuable third batting point. Warwickshire finished on 310 all out after Stone was caught at deep midwicket by an excellent catch from Graham Clark, with Ryan Sidebottom following him five balls later after being trapped lbw by Axar Patel for 0.
Durham's reply started confidently, but sporadic early wickets and Stone's eight-over stint meant long partnerships were unable to form.
Cameron Steel was the first to go when he edged behind to Ambrose off the bowling of Stone, whilst Wright bowled Alex Lees for 35 off his first ball of the day. Clark was dismissed for 14 trapped lbw by Sidebottom three overs before tea leaving Durham on 105 for 3, but Richardson steadied the ship alongside Smith in a stand of 46.