Pig Latin--not just for pigs! : Dragon Slayers' Academy Series, Book 14

Overview: The series follows the adventures of a young medieval peasant boy Wiglaf of Pinwick and his two friends, Erica von Royale and Angus du Pangus, as they are educated in the art of dragon slaying at Dragon Slayers' Academy (DSA), run by Angus' greedy Uncle Mordred. The academy is run under the motto "Goldius est goodius," features three pots of gold above a dead dragon on its back on its crest. The school serves only eel for breakfast, lunch, and dinner. When Mordred announces a three-day weekend for DSA, Wiglaf and his friends (including his Pig Latin–speaking pig, Daisy) are off to Erica's castle. But when they arrive, they discover that Erica's father, King Ken, has come down with a horrible case of liver pox. The wizard Zelnoc manages to cure the king's pox, but as with all the wizard's spells, there's a magical mishap. Now, King Ken can only speak in Pig Latin! Can Zelnoc fix his mistake, or is there a better chance that pigs will fly? Wiglaf and his pig, Daisy, are spending a DSA holiday with Erica at the Royal Palace, but King Ken has come down with the pox and Queen Barb's great healer is a not-so-great wizard who leaves King Ken speaking Pig Latin