Chemical Secret. Level 3

Classics, modern fiction, non-fiction and more. Written for secondary and adult students the Oxford Bookworms Library has seven reading levels from A1-C1 of the CEFR.
John Duncan was an honest man, but he needed money. He had children to look after. He was ready to do anything, and his bosses knew it.
They gave him the job because he couldn't say no; he couldn't afford to be honest. And the job was like a poison inside him. It changed him and blinded him, so that he couldn't see the real poison - until it was too late.