Ahmo was born to two Noldo parents on the Plains of Yavanna in Valinor When she was very young she was wed to Arthandron. Within three 'Valian Years', Melkor and Ungoliant crept up from the south and destroyed the beloved trees.

They followed Feanor, swept up in the emotion of the moment.

Ahmo strangled a Teleri who swung at her with a boat hook. The after image of his eyes is burned into the pupils of her own, a red flaw in her green eyes. Her husband Arthandron, a dandy and a noble gentleman takes part in her schemes, lending his own skill at arms and natural charm to her drive and ambition. Very often he is the culturally acceptable front for her plots. Realizing early on how malleable mortal folk are, she was drawn into the network of the Agents of Fortune.

Once in Middle Earth, she became a scribe in the court of Maedhros until the War of Wrath. After the First Age ends, the couple become attached to the court of Cirdan in Lindon. She served Celebrimbor as a scribe until Annatar suddenly re-appeared with a vast army to crush Eregion and subdue the elves. A flight to Mithlond in Lindon followed and she had to learn to fight, serving on the walls. It was then she became disillusioned with tradition and developed a taste for power.