Miles below Earth's surface, Gina and Penny reach the core of the Dwemeor (Dwarven) ruins, but separated from the rest of their team. As they begin to unravel clues and unsolved riddles from millennia ago, Gina is attacked by a Dragon-Slayer, a living weapon more than 65 million years old! Luckily, Penny has recovered two Dwemeor amulets of strength, but these only work on the lower half of their bodies! Will brains, wits, and enchanted thunder-thighs be enough to escape certain, pointy-toothed doom?