Strong Medicine (Holmes on the Range, #8)

Big Red and Old Red ride into Galveston, Texas, a city of elegant Victorian mansions and dark waterfront secrets, when a wealthy businessman burns to death in his own warehouse. The brothers find a town crawling with suspects: a brilliant female scientist, an eccentric would-be snake-oil salesman, a volatile socialite and a charismatic “healer” whose devoted followers will do anything she demands. As blackmail, madness and murder tangle beneath Galveston’s gleaming surface, the Amlingmeyers must separate miracle from menace before the killer delivers another dose of strong (and deadly) medicine.