The Dreams we left Behind

"Casey opened his mouth, but nothing came out. Only a choked-sounding noise that sounded suspiciously like a whine. He looked at Leo then, meeting the turtle's eyes for the first time since his panic attack had started.

"Master Leonardo is dead," he whispered then, as if afraid to say the words any louder lest they cement themselves into the universe."

Or: Casey's been repressing some certain feelings, and he isn't going to last much longer