Purgatory's Shore

On their way to fight in the Mexican-American War, a group of American soldiers are swept away to a strange and deadly alternate Earth in this thrilling new adventure set in the world of the New York Times bestselling Destroyermen series.
The United States, 1847. A disparate group of young American soldiers are bound to join General Winfield Scott's campaign against Santa Anna at Veracruz during the Mexican-American War. They never arrive.
Or rather . . . they arrive somewhere else.
The untried, idealistic soldiers are mostly replacements, really; a handful of infantry, artillery, dragoons, and a few mounted riflemen with no unified command. And they've been shipwrecked on a terrible, different Earth full of monsters and unimaginable enemies.
Major Lewis Cayce, late of the 3rd US "Flying" Artillery, must unite these men to face their fears and myriad threats, armed with little more than flintlock muskets, a few pieces of artillery, and a worldview...