"In God's name, what does it mean?" "It means murder..." When Miss Mary Morstan calls on 221B Baker Street, the 'utterly inexplicable' story she tells stirs the heart of Dr. John Watson – and rouses his friend Sherlock Holmes from his self-induced lethargy. For who else but London's only unofficial consulting detective could possibly solve the mystery of the disappearing Army officer, the one-legged man, his barefoot accomplice, the missing treasure chest, and... the 'sign of the four'? This atmospheric graphic novel adaptation by Ian Edginton and I.N.J. Culbard – the team behind this series' acclaimed A Study in Scarlet, The Hound of the Baskervilles and The Valley of Fear – will keep you guessing.