The Cassandra by Sharma Shields

Mildred has been put down, belittled and relied on for everything by her mom and sister. Left to care for her cranky mom with the venomous tongue, she sees her chance for a future and accepts a job at a secret government plant just far enough from her family. Milly is not a social butterfly but she does make a good friend in her roommate. The fact that Milly has powerful visions that make her say odd things, behave strangely and the fact that she sleepwalks, gives her roommate and others cause for concern. Soon Milly is very aware of just what the "secret" product is that they are building and the destruction that will be left in its wake. Her fears give rise to more intense visions and terrors until she is unable to separate reality from her strange, scary world. When a brutal attack happens and it is brushed aside she will lose the people closest to her as well as her tenuous sanity. A powerful horror story that is expertly blended with enough historical fact to make it truly frightening.