Hell Heart: Robert E Vardeman

This fifth book of a six-part series tying in with the VOR adventure game is set on a future Earth trapped in another universe. A meteor has crashed into the Central American jungle, radiating intense and deadly energy. Two deadly aliens are hurtling toward Earth to suck up the meteor's powers and kill any humans who stand in their way. THE SHATTERER OF WORLDS In Central America, rebel forces are battling Union troops for control of Chiapas. But the guerrilla struggle becomes an interstellar war when a lethal energy sliver from the Maw crashes into the Mexican jungle . . . pursued by the Maelstrom's most vicious aliens. Now in the fallout, a wounded Shard is mutating into a horde of crystalline monsters, while an undead Pharon priest slaughters both Union and rebel soldiers to reinforce his zombie army. And as the fighting escalates into bloody anarchy, the deadly energies build and intensify, threatening a damnation worse than even the Maelstrom itself. . . .