"I should be doing my job," Joker counts, easing up just slightly with the two of them invisible. It saves his own energy he could be using for a similar kind of spell.

"But, still, if you can get back so easily, should I just leave you to your own? It would give me a chance to corral everyone else back." Despite his words, he still moves onward, keeping an eye out for anywhere else that they can escape to for at least a moment's respite. They can bicker more properly there, than out in the open.