
The Crystal was linked to all lesser crystals on Thra, a fact which prompted Gelfling of the Grottan Clan to commune with it by touching the crystal veins in Grot and the Skeksis to incorporate spy crystals on their Crystal Bats, which would transmit images of whatever the Bats saw back to the Crystal. Preventing it from sustaining itself with the light of the Three Brothers would, furthermore, cause the Crystal to extract energy from the essence of living creatures in its vicinity. ĭamaging the Crystal would prevent its spiral linkage from untwisting, causing it to develop a wine-dark color and entrap purely malevolent energies, which would manifest throughout Thra in the form of the Darkening. Surplus energy from the beam would be distributed throughout Thra via a network of crystal veins and be converted into essence, which gave life to the planet's inhabitants, and would be reclaimed upon their death to start the cycle anew and keep the world in balance. Direct exposure to such a beam had healing properties. When one or more of the Brothers hung directly overhead, the polarized power emanating from them would untwist the Crystal's spiral linkage and produce a focused and intensely concentrated beam.

The Crystal nourished itself through the light of the Three Brothers. Įssentially a sentient entity, the Crystal communicated verbally on rare occasions by projecting and speaking through images of individuals it had previously been in contact with. SkekTek's own research showed that the Crystal's molecular structure had a spiral linkage which enabled it to rotate the plane of polarization of a beam of polarized light. This would have granted the Crystal the ability to selectively absorb polarized light and thus excite Thra's rarer elements.

Llewellyn hypothesized, in the absence of physical samples, that it was made of a high quartz, and deduced that it possessed an asymmetrical molecular structure. The Crystal of Truth was quartz-like in shape and was rhomboidal at its top and base, with a threefold symmetry, and was suspended in midair by its own gravity. 2.2 Arrival and stewardship of the Fallen urSkeks.
