The room was on the fourth floor, and the door was locked - with the key on the inside. The windows were closed and fastened - on the inside. The chimney was too narrow for a cat to get through. So how did the murderer escape? And whose were the two angry voices heard by the neighbours as they ran up the stairs? Nobody in Paris could find any answers to this mystery. Except Auguste Dupin, who could see further and think more clearly than other people. The answers to the mystery were all there, but only a clever man could see them.

Oxford Bookworms enjoy a world-wide reputation for high-quality storytelling and a great reading experience. Research shows reading a lot improves all your language skills. Experts recognize Oxford Bookworms as the most consistent series in terms of language control, length, and quality of story - very important for fluent reading and extensive reading. There's a wide choice of titles too - something for everyone.

Word count 6,995

Retold by Jennifer Bassett