The Scourge creature you just destroyed had this device held in its clutches. It has a jewel set into it which looks similar to the one that tops the scourging crystals.
Surely, Apothecary Anastasia would like to have a look at this.
What's that you have there, <class>? Let me have a closer look at it!
I can tell you what this is, <name>. It's a controlling device for those scourging crystals down there!
I bet anything that it can be used to shut down their force fields. Hmmm.
<The apothecary looks thoughtful as she ponders the implications of you having the device.>