Board Thread:Questions and Answers/@comment-26258658-20150330001151/@comment-24577221-20150330032044

When an Ethereal is moved from its island of origin to Ethereal Island, the move is permanent and irreversible. Ethereals can't be bred with any monster, except with other kinds of Ethereals on Ethereal Island. There aren't any short cuts for breeding multiple Ethereals on the "natural" islands.