From The Enigma
NPL Magazine - Nov/Dec 2010
ENDGAME

By turning straw into gold I found
Great fabulistic fame;
I'll take your first-born child unless
You can guess my name.

Answer: WRINKLE AVOCET

Can you explain the answer?

Answer:

WRINKLE = RUMPLE
AVOCET  =   STILT'S  KIN