Therdis was raised in Tornhad, and grew to adulthood in the shadow of her father, an accomplished scout and hunter, and her mother, an herbalist and midwife for the settlement. She was apprenticed to Mandan for her training and made her oath to the chieftain of the Dúnedain only shortly before the defeat of Sauron. Not naturally very athletically-inclined nor coordinated, she felt deeply the burden of having needed to train twice as hard as her peers to be given the same position, and as such not only took her oath and duty perhaps a bit over-seriously, but was also inclined towards a certain kind of hypocritical resentment of her fellow-Rangers, especially those she perceived as not taking their own responsibilities seriously enough. 

She disappeared some time before the events of the War of the Ring and was presumed dead by her family in Tornhad. Recently, she was been seen in Esteldin and then in Tinnudir before seemingly disappearing again. 

You said: “I’ll go to another country, go to another shore,

find another city better than this one.

Whatever I try to do is fated to turn out wrong

and my heart lies buried like something dead.

How long can I let my mind moulder in this place?

Wherever I turn, wherever I look,

I see the black ruins of my life, here,

where I’ve spent so many years, wasted them, destroyed them totally.”

You won’t find a new country, won’t find another shore.

This city will always pursue you.

You’ll walk the same streets, grow old

in the same neighborhoods, turn gray in these same houses.

You’ll always end up in this city. Don’t hope for things elsewhere:

there’s no ship for you, there’s no road.

Now that you’ve wasted your life here, in this small corner,

you’ve destroyed it everywhere in the world.

The City -- C. P. Cavafy, trans. Edmund Keely