Twelve year-old heroes, Robert and Alice, return in this classic action-packed adventure where school teachers, monks and knights are all under suspicion. The story twists and turns between science lessons, car chases, minstrels’ ballads and archery contests in a clever, modern interpretation of the legend of Robin Hood.

Robert and Alice must solve the clues to save the world from a terrible evil that lies in wait through the corridors of time. Loyal friends and murderous time travelling enemies abound across Sherwood Forest, from Nottingham to Lincoln, in present day holiday parks and medieval castles. The two young friends must search for the truth behind the Masks of Robin Hood.

As ever, accurate historical references are interweaved with a thrilling story.