The Builder's Sword: The Legendary Builder, Book 1

Arthur Curie never expected to wind up in Hell. At least, not because he found an ancient sword in a pawnshop. To make matters worse, Hell isn't as he thought. It's a desolate wasteland under siege by an all-consuming void known as the Darkness.

Now, he's trapped with no way home, a ragtag army of women, and a sword whose only power is to modify the abilities of those around him. Not exactly winning odds.

Worse, if the Darkness isn't stopped, not only will it devour Hell, but Earth will be next on the menu.