Answer:
Ten doors down from the home of a world famous 'consulting detective' lives twelve-year-old Hemlock Jones, and her recently arrived housemate and unwitting companion, Edward Whitlow. Hired to 'demystify' the mystery of a man's murder by a terrifying angelic spectre, Hemlock and Edward's investigations will lead them all over Victorian London, uncovering bizarre and deadly foes, figures from Hemlock's hidden past, and a plot to take over the city... Hemlock Jones & The Angel of Death is the first of the Hemlock Jones Chronicles