Ganzir

You've studied hard. You've delved into books of forbidden knowledge. You've gathered the exotic and nearly impossible to get ingredients. You've chanted all evening and night. You've made sure that the STARS ARE RIGHT.
So you cast the spell and open the gate.

Oops.

Instead of a properly working hyperdimensional gate, you now have a gate of GANZIR. That's right, you screwed up royally, and this DARK PORTAL is bad news. Now you've gotta fight off THE HOUNDS OF TINDALOS and avoid getting sucked into that EMPTY void between universes.

Oh, yeah. Don't forget asking YOG SOTHOTH to kindly put things back to normal.

Illustration Friday has proposed the word 'EMPTY' and this is my take on it. I gotta go back and consult my copy of the NECRONOMICON to see where this gate went wrong...

* sigh *

"Remember always to copy each of the formulae as I have put it down, and not to change it by one line or dot, not so much as a hair's breadth, lest it be rendered valueless, or worse: a broken line provides entrance for Those Outside, for a broken star is the Gate Of GANZIR, the Gate of Death, the Gate of The Shadows."
- Alhazred, the mad arab...

* sigh...again *