Read and solve the Christmas mystery together with the children’s favorite heroes Jerry and Maya! Martin Widmark and Helena Willis have created a quirky, atmospheric story with a new and exciting challenge on every page.

Who is behind the powercut that has plunged the entire town of Valleby into darkness? And on Christmas Eve too! Decipher the codes, solve the puzzles and figure out how all the clues fit together. Your reward: a wonderful Christmas celebration with all your favorite characters from the JerryMaya books.