I'm a big fan of transformation decks, so I was surprised I'd never come across the work of John Littleboy before, and immediately had to order these when I saw they were available here. But Littleboy has produced several great transformation decks, including Pack of Dogs, Kitten Club, Mermaid Queen, and Bag of Bones. The number cards are my favourites, because the pips have cleverly been incorporated into a larger art piece. The Bag of Bones deck is more macabre and morbid than the others by Littleboy, and there are images with skulls, blood, and a generally darker theme, so its my least favourite of the Littleboy transformation decks. Even so, the concept is clever and well executed.