A Thread of Daylight - The Giving Year Cycle, #3

Once, fey Hartkin Sable leapt from her realm to another to save the woman she loved. Now, Pictish mortal Eithni must do the same--to save her lover's brother, and fulfill Sable's promises to The Daylight Order, the fey rebellion to which Sable owes her fealty. But the hardest path lies in what the two women must forge together in the Fey Realms, not in what they leave behind... For their enemy, a corrupt Lightlord of the Summer Realm, will stop at nothing to enact his revenge and claim the mortal woman who was meant to be his.
A sapphic romantasy novella set in Early Medieval Pictland...and the Realms of the Fey.