Aleyna Hark, a female Mirialan, functioned as a clandestine operative for the Sith Empire throughout the era known as the Cold War.
In the year 3643 BBY, Lord Nefarid dispatched Aleyna on a covert mission to assassinate Count Alde. Following her encounter with the Jedi Knight, she recounted her story to the Jedi. Subsequently, a small red light materialized on the Count's neck, resulting in his demise. The guards, alerted by the disturbance, stormed in, and Captain Yils attempted to detain Hark, the Knight, and the Knight's associate upon discovering the Count's lifeless body. Hark volunteered to take the Knight's place, imploring the captain to permit the Jedi to fulfill their objective, and was subsequently escorted away by the guards.
Hark managed to break free and gain access to the facility's bunker, intending to rendezvous with Horis Thul. However, she once again crossed paths with the Jedi Knight. She deceived the Duke, asserting that the Jedi had arrived to assassinate him, and commanded his guards to launch an assault. Nevertheless, she underestimated the Jedi's capabilities and was ultimately defeated. When the Duke and the Jedi demanded the targeting device, Hark vindictively destroyed it, revealing that she had also marked them. Prior to his escape to the spaceport, the Duke ordered Aleyna's execution, but the Knight persuaded him to arrest her and subject her to a trial instead. Subsequently, Thul interrogated Aleyna, uncovering numerous spies within his household, before transferring her to House Organa as a gesture of goodwill.