Grand Pabbie, the wise ruler of the trolls, is deeply sad... Indeed, the Northern Lights are fading since crystals, once so bright, have lost their glow. Fortunately, the four heroes of Frozen: Anna, Kristoff, Olaf and Elsa are determined to help him by collecting new crystals. Run through the frozen mountains to get all the crystals and collect snowflakes to upgrade abilities of your characters.
