TY - BOOK AU - Doyle, Sir Arthur Conan TI - Sherlock Holmes: The Sign of the four SN - 9781782264101 AV - PZ24.2 .DOY 2021 PY - 2021/// CY - UK PB - Sweet Cherry Publications Limited N1 - When Holmes is asked to look into a cryptic message received by Mary Morstan, neither he nor Watson expect to be drawn into a decades-old web of betrayal. Soon they're conducting dangerous moonlit expeditions to uncover the meaning of the sign of the four, and resolve a long-buried crime ER -