LEGO Power Miners 8957 Mine Mech
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Mysterious underground rumblings are shaking the LEGO® world. Mischievous little rock monsters are digging beneath the planet's surface! A famous LEGO geologist named Brains studies the monsters and discovers there are five different coloured monsters, each with different characteristics, and all have a huge appetite for the crystals that can be found in the centre of the planet.