12 PUZZLES BEFORE CHRISTMAS - Enjoy twelve metal disentanglements puzzles for each of the twelve nights of Christmas with this beautifully bound brainteaser advent calendar. Open the book and discover a new challenge for each night. The Holly Jolly 12 Days of Christmas advent makes a great gift for anyone looking for something special for that smart person in their life, or anyone looking for a an advent that is not edible. Once you get them apart - can you get them back together? For each metal disentanglement puzzle, you must figure out how to separate the two pieces and then be able to link them back together again. Enjoy hours of screen free time with the whole family.