Board Thread:Questions and Answers/@comment-31540915-20170318004920/@comment-31540915-20170318014831

The fluff behind this particular group of Flayed ones is that they were poets among the Necrontyr that the forced to write of the virtue of sheding their mortal coyle to encrage other Necrontyr worlds to embrace the bio-conversion. Saddly they could express themselves in verse without embracing the life they gave up to become Necrons. Cloaking their mecanical forms in the wet flesh of their kinsmen allowed them to write. The C'Tan saw the value in this propaganda and gave them the technolgy to keep the their skins alive (and in constant pain) for all eterinty.

And yes by this logic the C'Tan could have made the Necrontyr's organic bodies imortal - but chose not to.