What they knew, was a lie, Dick isn't the first Robin, he has never been, not even the oldest. You are, you're the first Robin, and the oldest kid of the Bat-man. Non of them knew about you, Bruce never told them anything about you. "Why you have never been mentioned before?" Dick asks quietly while hid real question is; why have you never been around them? "What happened anyway?" Jason asks next, while his real question is also his older brother's question. "Why are you back now?" Asks Tim.