RIFT- Strain of two worlds

The main idea of this novel was inspired by the anime series GATE. Everything else is original as can be.

While the world is in an already state of terrible news, it just got even freakier. In Washington state, a door to another world has opened. A dimensional rip spewing out colorful lights has erupted from Mount Rainier near Seattle. Half of the mountain has been ripped open from its side facing the large city. Before scientists could poke or prod this phenomenon. A hellish mass of monsters have swarmed to flock out the portal. What looks like to be fantasy monsters from a kid's book crawl out. Three to two-story trolls lumber across land requiring heavy guns and explosives to take out. Meanwhile under their feet flood an uncountable number of goblins and orcs. The goblins throw themselves forward as an unlimited meat shield for bullets while eight-foot to twelve-foot orcs ride hellish wolf mounts the size of military cars. Taken by surprise, Seattle was the first to fall to mysterious dark magic, soon Tacoma, Idaho then Oregon. After the initial surprise, a lot of the non-believers finally saw what they were fighting, and they were able to slow down this menace's progress. But unable to nuke the enemy for them being inside the country and holding millions as slaves, they slowly push back American forces while they dig themselves in fortresses. Making a message that their here to stay and conquer more than America.