Oops?

The final shot rang.
The group watched as the Arch-Archon's body slid down to the ground.
"We did it!"
"Yeah? so why is it still going?"
They turned around to see the vortex still swirling, sucking in everything around it. The palace started dematerialising around them.
A beep made them turn around. A holographim of the Arch-Archon smiled at them.
"Oh dear, were you betting that with my death, the machine would stop? Did you think I was stupid enough to tie it to my life force? If that is the case, I have only one thing to say."

"Oops?"