When the gate between Earth and Fairie blows up and traps Theodora Edwards in the mystical realm, she must work together with her guardian and the dark prince to locate and safeguard a magical key that powers the Light Court. While learning to properly use her fae magic, Theo is forced to fend off an abduction attempt by wraiths, locate a missing castle, tame a dragon king, and have a friendly chat with the dead queen. But with all of Theo's efforts going toward protecting those she loves, she struggles to find time to explore the possibility of a romantic relationship-and the insecurities that come with it.