No One Left (Sofia Blake FBI Suspense Thriller, #2)

FBI special agent Sofia Blake, with a Ph.D. in linguistics, can decipher any hidden codes, messages, or foreign languages the Bureau sends her way, finding patterns where others cannot and making her indispensable in tracking down the most heinous of serial killers.
In the Mojave Desert, a renowned archaeologist is found dead in a remote cave, surrounded by cryptic ancient symbols. Can Sofia unravel the complex web of secrets encoded within the glyphs before the killer claims his next victim?