I read this in Catholic Herald. The author of the article, John Hinton, really needed to be more erudite as he reviewed Worlds of Arthur by Guy Halsall.

Basically what the author ought to have done is ask about the afterlife as expressed by the Arthurian legends. Especially as Arthur is now more associated with Glastonbury than ever before due to recent research into the life of Joseph of Arimathea I love the picture by Burne-Jones

The Last Sleep of Arthur in Avalon- Edward Burne-Jones