Elaine could hear Dr. Banner arriving, but it took Kae's nudge to let her know about Mr. Barton. Even with her more-sensitive ears, she couldn't hear his footsteps.

"Dr. Banner," she greeted, "Mr. Barton. Welcome back."

"Sure about that?" she heard Dr. Banner mutter. Louder, he added, "Uh, thanks."

"Since we're all here," Steve broke in, "maybe we should get back to work."