Title: Four for a boy
Subjects: Crimes against, Fiction, History, John the Eunuch (Fictitious character), Philanthropists, Murder, Detective and mystery stories, Fiction, historical, Fiction, mystery & detective, general, Istanbul (turkey), fiction, Fiction, historical, general
Places: Byzantine Empire, Istanbul (Turkey)
People: Justinian I Emperor of the East (483?-565)
Time periods: Justinian I, 527-565