Professor Hugo Strange, Chief Angel Rojas and others in “Strange Minds”

I have developed a device that allows its user to tap directly into a patient's mind, like a two-way radio transmission.

You gotta be kidding me.

Hardly. The technology is untested, and therefore risky, but I am willing to volunteer.

What makes you so sure Joker will be willing to cooperate?

Another voice in my head? Well, the more, the merrier!