One of Us Is Lying. Level 6. B1+

Penguin Readers is an ELT graded reader series for learners of English as a foreign language. With carefully adapted text, new illustrations and language learning exercises, the print edition also includes instructions to access supporting material online.
Titles include popular classics, exciting contemporary fiction, and thought-provoking non-fiction, introducing language learners to bestselling authors and compelling content.
The eight levels of Penguin Readers follow the Common European Framework of Reference for language learning (CEFR). Exercises at the back of each Reader help language learners to practise grammar, vocabulary, and key exam skills. Before, during and after-reading questions test readers' story comprehension and develop vocabulary.
One of Us Is Lying, a Level 6 Reader, is B1+ in the CEFR framework. The longer text is made up of sentences with up to four clauses, introducing future continuous, reported questions, third conditional, was going to and ellipsis. A small number of illustrations support the text.
A geek, a jock, a criminal, a princess. A murder.
Everyone has secrets. How far would you go to protect yours? Five students at Bayview High must stay late at school but only four of them leave alive. Bronwyn, Cooper, Nate and Addy all become suspects in a murder. Who do you believe ?