Soulless is a series of books that describes the clash of a modern-day Earth with an epic fantasy world. It focuses on exploring their differences in culture, mentality, and philosophy, highlighting misconceptions and misunderstandings that arise between the two.

In this book, a human diplomat finds himself teleported to an underground cave against his will. There, he is left with no other choice but to use all of his wits and diplomatic skills to bridge the gaps and form unlikely alliances between the cave's unusual inhabitants if he is to get out of there.

This book starts in the middle of Soulless: A free slave, when Eric disappears into thin air.