He was to find that some things are beyond definition. That definitions and explanations rely on the natural laws that surround you. Only, for Peter, the natural laws have changed.

The previous battle was between science and myth. Now, in Crystals, the conflict goes on, with rules drawn from another dimension. This time, the outcome is a matter of life or death, and victory may hinge on something as insignificant as the shimmering facet of a crystal.