Eukanaria and Haruhiko are hot on the trail of the elusive Demon-Stones in
an all out treasure hunt. When digging for buried treasure, you have to have the
right atmosphere and the Crystal Cave seems like the ideal spot. But buried
treasure, by definition, has to be protected by traps and treachery. So when the
stone walls in the cave begin to move, it's a sure sign that they are in the
right spot.