Doctor Who: Mummy on the Orient Express. Book with Digital Version and audio. Level 3

The Doctor and Clara are travelling on the most beautiful train in history, racing through the stars. But something terrible is happening: a mummy is killing the passengers. After you see it, you have only 66 seconds left to live. There is no escape. As the Doctor tries to stop the creature, Clara feels he is colder and more distant than ever. Can he solve the mystery before time runs out?