Anything that looks like this I got from a book by @MolMcN

One hot summer day

The Justice League zeta in to Mount Justice "Team, today we are doing a mental exercise-" Batman was cut off by Robin "This exercise wouldn't have us go into some kind of mental world, where all of teammates die, and we end up being scared for life? Cause we kind of already did one of those."

Batman sighed and pinched the bridge of his nose "How many times do I have to apologize for that?" Robin took a notebook from his belt "It looks like you'll be done by the time I turn... thirty four." He smirked while batman groaned.

"I'll let Martin Manhunter explain." "Today we are going to enter each other's minds at random and discover some stuff we may not know about each other." J'onn explained "And what if some of us refuse?" Robin asked "You won't." Batman replied "Everyone lie down and we will start." J'onn said everyone laid down and they went in to a mind. "Hey this is my mind!"

Who should it be?