Deep Secret

Rupert Venables is a Magid.
It's a Magid's job to oversee what goes on in the vast Multiverse. Actually, Rupert is really only a junior Magid. But, he's got a king-sized problem. Rupert's territory includes Earth and the Empire of Korfyros. When his mentor dies, Rupert must find a replacement. But, there are hundreds of candidates. How is he supposed to choose? And, interviewing each one could take forever.
Unless...
What if he could round them all up in one place?
Simple!