If Sirris is turned hostile and leaves Firelink Shrine, does she show up anywhere else?

I went through Sirrs' questline up to the part in the pit of hollows and got her shield but not her talisman. I read that the talisman appears after completing the archives and thought she was dead so it was safe to do the Rosaria stuff. But she reappeared in Firelink pissed off at me and left. Having since killed the twins, the talisman still isn't by the grave. I'm afraid it won't show up even though I did all her sidequests. Anyone know if she can be found and killed for the drop anywhere?