Sparrow in Broken Blade

[Lysippe]

I found the secret hall in the Forgotten Coast but my attempts to avoid being shot by Sparrow have proven unsuccessful. There is no dialogue regarding me identifying myself via code Silverhawk, and she tries to kill me every time. Any suggestions?

[Randomizer]

If you have accepted the mission to see Sparrow from Korren you should have gotten a dialog option to give the password. But don't worry the result will be the same so do whatever you have to in order to get the key.