The second book in the famous Lewis Barnavelt series. Settled into his new life, Lewis seems content living with his magical Uncle Jonathan and neighbour Mrs Zimmermann. He even has a new best friend, Rose Rita, who loves to play sport, build Roman ship models and play with magic - all the things Lewis loves to do too! After discovering Grandpa Barnavelt's 1859 lucky coin, Lewis is certain that it is magical, so he puts it to the test - he recites...

Mrs Zimmermann is at a loss - she still hasn't regained her powers from her last encounter with dark magic and Uncle Jonathan and Lewis have left for the summer to travel around Europe, leaving her and Rose Rita bored and lonely at home. That is until Mrs Zimmermann keeps on seeing visions and shadows of her old magic teacher, Granny Wetherbee, who is trying to contact her from beyond the grave. Mrs Zimmermann and Rose Rita set off to Pennsylvania...

In the woods near his home in Michigan, thirteen-year-old Lewis Barnavelt stumbles upon an ancient grave and silver whistle that draw him, his best friend Rose Rita Pottinger, his uncle Jonathan, and their friend Mrs. Zimmermann into a battle with an ancient evil.