Oenone had found the chapel by accident, and was not certain what kept drawing her back to it. She was not a Christian. Few people were anymore, except in Africa, and on certain islands of the outermost west. All she knew of Christians was that they worhsipped a god nailed to a cross, and what on earth was the use of a god who went around letting himself get nailed to things?
If only Myrtle would pay attention to the Boy's Own Journal, Blackwood's Magazine, etc., she would know that these creatures were Threls, who come from a worldlet called Threlfall on the far side of the asteroid belt. This Threlfall is a cheerless, chilly spot, and the whole history and religion of the Threls has been concerened with their quest to knit a nice woolly coverlet for it.