Myra ir'Clain was a trainee in the The King's Swords at the same time as Sacha Cresswell, and the two competed heavily. Her victory in a tournament left Sacha Cresswell with a severe fear of her.
After Sacha Cresswell dropped out, she completed her training, as was eventually assigned to Darkreef Prison. There, she butted heads with the warden, who she felt was being too lax on the prisoners. She expressed a desire to gain admittance to the Dark Lanterns. When she ran into Sacha Cresswell again, she was deceived that he was still a loyal soldier, and gave the crew of The Demon's Mercy useful information in their search of Darkreef Prison. Later, they ran into her in Khyber; she had led a patrol down there to search for myconids, as they needed components for the potion that let people safely leave the prison island. Again, Sacha Cresswell was able to deceive her, and so they formed a temporary alliance without her ever realising that she was aiding pirates.
Myra was often accompanied by her familiar; a ferret named Jinx.