Mýlher was born in the Second Age in the realm of Ossiriand, though by that time it was known as Lindon, the kingdom of Gil-galad. She remembers the time of the great expanse of the kingdom before the downfall of Numenor, but has lived long enough also to witness the fall and withering of the kingdom, and later, the fall of the king. 

 During the later Second Age, Mýlher grew close to a group of Gondolin exiles and found among them friendship. She fought alongside them in the Last Alliance and considered them her greatest allies. When at the end of the war, they appeared sundered and one dead, she returned to Lindon with a heavy heart. There Cirdan now led, while Mýlher watched in silence as her kin took to the sea in their departure.

 She has spent long in Lindon assisting those who choose to sail. When not assisting with the preparations for the ships, she is studying lore or historical books. She taught herself old lays and songs and seeks out words of power in long-forgotten scripture. Though Mýlher speaks softly now, her words carry weight behind them, and thoughtfully so. Recently she heard that Cardanith was indeed alive, and she now seeks him out to offer aid, and an oath fulfilled. Even though she will no longer join beneath his banner, she is continuing to raise her blade in a desire for justice.