George Webbe Dasent, Popular Tales from the Norse — The Widow's Son (1912)
“ Then the lad thought this all wrong, so he changed them about, and put the hay at his head. Then said the horse,— "Since you are so good at heart as to let me have some food, I'll set you free, that I will. For if the Troll comes back and finds you here, he'll kill you outright. But now you must go up to the room which lies just over this, and take a coat of mail out of those that hang there; and mind, whatever you do, don't take any of the bright ones, but the most rusty of all you see, that's the one to take; and sword and saddle you must choose for yourself just in the same way." ”
