Wraithbone

Wraithbone It is essentially solidified warp energy which is manipulated by a Bonesinger into whatever is needed. It can only be shaped by using psychic powers but is extremely malleable and can be made into any shape the Bonesinger wants. It is also very tough and resilient. Being created from the warp, it has innate psyhic abilities allowing it to be used as a communications pathway as well as the structure. It carries psychic energy much as a cable carrying current does, as well as containing psychic shields to protect the occupants from the warp .

Effectively, the wraithbone performs all of the tasks a machine would. The organic members of the crew use psychic powers to perform their duties, but it is the wraithbone itself that actually does it. In the case of Eldar ships, the basic framework is created from Wraithbone and then the internal areas are made, finishing with the actual internal components. Once this is complete, the ship is ready to be used. Even the mighty craftworlds are made of Wraithbone, and this is how the occupants of craftworlds survived the birth of Slaanesh, for the psychic shield of the Wraithbone protected them from his mighty psychic scream.

Wraithbone emits a sympathetic psychic signal that Eldar can lock onto and use to control the object. Generally, Eldar buildings have a flowing form and lack any harsh angles. It is also used to make Eldar Runes.