Croaked! (The Misadventures of Nobbin Swill)

Nobbin is now Prince Charming's assistant, though he's not able to assist him in his prince training when things go awry saving Princess Angelica. After that mishap, Sir Roderick thinks the princess needs training too and advises the king to send her away to a queen who can properly educate her. The king has doubts, but the queen suddenly shows up with her son, Figbert.

They both torment and insult everyone at the castle and in the village until one day, Figbert disappears. The queen thinks it's the butler, but Nobbin suspects Sir Roderick. As they search for clues, they finally are able to find Figbert, but he's not quite like they remember. He's much smaller, rounder, and much, much greener. Will they be able find out who turned him into a frog and crack the case?