Children of the Storm (Amelia Peabody Series #15)

A Great War has ended, but evil still casts a long shadow over a violence-scarred land. One woman -- an adventurer and archaeologist with a brilliant mind -- must now confront a dreadful adversary more fiendish and formidable than any she has ever encountered. But by doing so, she may be feeding the flames of a devastating firestorm that threatens the fragile lives of the tender and innocent.