The third novel in 6 times New York Times best-selling author Lois H. Gresh's Sherlock Holmes vs. Cthulhu series. THE OBLITERATING SHADOW The deadly dimensions over London have been sealed, and the monsters have departed. But word has come to Sherlock Holmes and Dr. Watson of a more terrifying creature still - the great Cthulhu has been sighted off the waters of Innsmouth, Massachusetts...