Brane Child: A Science Fiction Counter-Fantasy (Adventures of the Brane Child Book 1)

The Brane Skip device may provide a way for humanity to overcome the light-speed barrier and finally head for the stars. It seems like magic to Lisa Chang, the young engineer in command the first crewed test flight, and Lisa doesn't believe in magic. But she does believe in the mission. Humanity must explore space in order to survive and prosper, and she feels honored to be among the first to go where no one has gone before. She does not know what will happen when the Brane Skip engages. She thinks it will do nothing. She fears it will explode. She does not expect it will cast them adrift in space and on a collision course with a fantasy version of Earth, complete with dragons, orcs, and wizards.

Unfortunately, this is exactly what happens.