A dead brother keeps his promise and rides his sister home — the power of besa (given word).
From — From the home fire to the given word — a dead brother rides his sister home.
Toward — Kindred besa-return — husband and wife on the coast, not the brother–sister ride.
Brother–sister grave-ride / Dead Brother ballad. Not the same as Aga. Ymer (husband–wife Ulqin/Vogëlith); ≠ Halili kreshnik twin; ≠ lugat physiology. Halil Garria-type N oath-ride stays motif-family, not blood undead.