How to start the endgame

Hint 1 of 5:

You got the Bubblewand before leaving the queen ?  +60 points

Hint 2 of 5:

ATTACH WAND TO APPLIANCE.

Hint 3 of 5:

The word changes from "Identity Assumption" to "Necromancy".

Hint 4 of 5:

PRESS BOTH BUTTONS. Professor Hiddenmolar will show up. Let him gab.

Hint 5 of 5:

Now you know where the ancient key went.