You get the phone call at 4 a.m. By 5:30 you're in the secret installation. The commander explains tersely, It's about the Slipgate device. Once we perfect these, we'll be able to use them to transport people & cargo from one place to another instantly. An enemy codenamed Quake, is using his own slipgates to insert death squads inside our bases to kill, steal, & kidnap. The hell of it is we have no idea where he's from. Our top scientists think Quake's not from Earth, but another dimens...