A lost reflex of the Tam Lin tradition

In the traditional ballad of Tam Lin, as you know, Janet goes out into the wood of Carterhaugh, the terrain of the fairy knight Tam Lin, and Tam Lin impregnates her. Later, on Hallowe'en, Tam Lin is cursed to be the Fairy Court's tithe to hell, and only Janet can save him because of her power as Tam Lin's lover and as the mother of his unborn child.

I have recently unearthed evidence suggesting that there is a lost text of the Tam Lin tradition, a missing link, if you will, connecting the Tam Lin ballads and a more recent and better-known popular narrative, also associated with the discovery of sexuality, the gates between worlds, and the day of All Hallows’ Eve. Allow me to show you my argument.

( Evidence for the missing link )