Rick and Roxy must locate and awaken the legendary King Arthur to prevent King Oberon from enslaving the human race. Tasked with protecting humanity from the wrath of the ruler of Avalon, the protagonists navigate the precarious boundary between the magical realm and Earth. They face the immediate threat of Oberon's forces while contending with the reality that their only hope, King Arthur, is currently suffering from amnesia and living a mundane life with a pet puffin. The narrative maintains a high-stakes pace as the duo attempts to restore the king's memory before the encroaching dragon threat destroys their world.

Readers frequently highlight the lighthearted tone and the creative subversion of traditional Arthurian tropes. Discussion often centers on the effectiveness of the fish-out-of-water scenario involving King Arthur and his pet puffin. The pacing is consistently noted as brisk, favoring action over deep philosophical exploration. Many fans appreciate the balance between the high-fantasy stakes and the comedic elements that define the series. The book is generally regarded as an accessible entry for readers who enjoy modern interpretations of classic legends.