I Will Ruin You - Linwood Barclay

Teacher Richard Boyle certainly never thought he would find himself talking down a former student intent on harming others, but when a former student shows up at school with a vest packed with explosives, he springs into action. Thanks to his quick thinking, Richard averts a major tragedy but his moment in the spotlight puts him in the sights of a deranged blackmailer with a score to settle… As events rapidly spiral out of control, Richard is drawn into a tangled web of salacious accusations and deadly secrets. As he tries to uncover the truth, Richard discovers that there's something dangerously wrong in the town. Everyone in his life seems to be hiding something, and trusting the wrong person could cost him everything he loves. International bestseller Linwood Barclay returns with a breathtaking new thriller.