Mark, Jane, and Steven go to Edinburgh to run a marathon; but during the marathon, something terrible happens: Mark, a man whom almost everyone hates, dies from an allergy. Back in London, it soon becomes clear that Mark's death wasn't an accident. The question now is: who could have murdered Mark? Jane, his only friend, risks losing everything to find out. Written in simple English with notes for difficult words and idioms. With 100 reading comprehension questions and information boxes about English culture. English Level: B1-B2 (Beginner-Intermediate)