This clever & terrifying novel is a classical-style, slam-bang adventure. First came the 7 . . . now there are 6. Arthur Conan Doyle is a celebrated author -- due to the enormously popular exploits of the fictional detective he fashioned after his boldly eccentric sleuthing partner, Jack Sparks. Together, a decade earlier, they curtailed the apocalyptic triumph of a dread, otherworldly menace. And now an even more horrific game is afoot. Certain doom awaits Doyle & his impetuous younger brother Innes on a book tour across America -- as do 6 extraordinary personages, linked solely by dreams of a black tower & a river of blood. For each has a leading role to play in the ultimate drama of light versus darkness.