Never mind. Today instead of tomorrow. A lot of things can go wrong in this scenario. Also, the elf/human split could have been entirely coincidental or Einar's choice-decision of Einar's creator. Of course, others might not see it that way...
The bird that would soar above the level plain of tradition and prejudice must have strong wings. It is a sad spectacle to see the weaklings bruised, exhausted, fluttering back to earth. — Kate Chopin, The Awakening