Easy Target

After uprising the whole shadow world had went into chaos. Shadowhunters had split into two: Clave and Circle. Even if Circle's leader had died during the uprising, his parabatai had took his place and lead the Circle with Stephen Herondale who had barely survived.
Alexander Lightwood is one of the best hunters and is now send to New York from Idris for a special solo mission. Being best with archery, he alone is able to finish the mission.
But what happen when he finally meets his target and also finds out that his sister is still alive?