The Dragon of Ralhorrah

He went through a portal in the air above his apartment building. It took him to another world, with no way home. That's when his problems really began.

Mark Miward is just trying to survive his last year of high school when he spots a boy in black descending on a rope--from an impossible hole in mid-air.

The next thing he knows, Mark is in a barbaric world full of danger and adventure. He trains with the Knights of the Crown, and begins to carve out a new life for himself--until invasion, betrayal, and war turn his new life into a nightmare.

And that's before the dragon shows up...