Much to their initial dismay, a twelve-year-old boy and girl discover they are destined to become knights of King Arthur's legendary Round Table, but first they must find and reforge Excalibur and break a curse that has weakened the magic of the Twenty-Five and a Half Realms.

"Tamsin Lark goes on a quest to find the infamous ring from Arthurian legend to break her brother's curse"-- Tamsin Lark didn't ask to be a Hollower. As a mortal with no magical talent, she was never meant to break into ancient crypts, or compete with sorceresses and Cunningfolk for the treasures inside. But after her thieving foster father disappeared without so much as a goodbye, it was the only way to keep herself--and her brother, Cabell--alive....

"Princess Shiori made a deathbed promise to return the dragon's pearl to its rightful owner, but keeping that promise is more dangerous than she ever imagined. She must journey to the kingdom of dragons, navigate political intrigue among humans and dragons alike, fend off thieves who covet the pearl for themselves and will go to any lengths to get it, all while cultivating the appearance of a perfect princess to dissuade those who would see her burned...