My Dad's A Warlock and I'm On Probation

Rule #1 of my magical probation: don't use your powers.

Rule #2: definitely don't sneeze.

I broke both.

Now my parents are stuck in a nightmare dimension full of teeth and geometry that hates you, and the only person offering to help is Morgana le Fay - yes, evil sorceress, probable sky-burner, please-don't-let-her-out Morgana.

The plan?

1. Keep my maybe-crush from finding out she's basically a magical doomsday button.

2. Open a world-ending prison without ending the world.

If I pull it off? My pa...