At the end of book 17 of the Roman Mysteries Caroline Lawrence introduced us to Threptus – a young beggar boy. In this fun and fabulous new series Threptus starts work with his mentor – the soothsayer Floridius – and together they must solve their first mystery… Can they rid a rich woman’s house of the demon that haunts it in the dead of night? What is the true nature of the demon? And is it really a supernatural being? Threptus is a brave funny and loveable hero and each story is a mini-mystery perfect for readers aged 7 up.