Similar to mine, maybe. A group of Sharrans sent on a mission to secure an artefact is something that happened, but it was a different artefact. When I was asked to kill the Nightsong, I was with my companions from the Nautiloid, and they aren't exactly supporters of Lady Shar.

[which made a big difference. if she was fighting against a group of fellow sharrans she would have wanted to act first. whereas she was with a group of people who generally supported her and cared about her but did not want to see her kill this woman.]

You stayed and fought with us, in this one. [But clearly should not have.]