Borrowed Life Force

Where have you been?
Don't you see what's happening? Our undead are dying, they lie down and don't get up. That's because there's not enough life force. Summoning is a tricky business - you have to take it from somewhere to pass it along. You can't create it out of nothing!
We need to kill someone fast. Maybe I should kill you, {username}? Or this Amanda?
Ah, never mind, I'd probably get more life force from a cat. Kill those... bugs. The local termites. Pick fat ones. When you're done, take the essence to the elf, she'll have someone deliver it.

That’s what we needed, thank you! I’ll send it to that evil wizard. But he’ll be busy if the termites manage to create their own civilization. Look how they’ve progressed already.