Batman had walked into Wally's room in the infirmary after talking to Superman about some things, and noticed that the bed was empty. Panicking, Batman ran out of the room in search of him.
He had just rounded a corner when he heard a muttering of apologies. He started running faster and stopped once he saw what was going on.
There before him was a huddled, little Wally muttering apologies and crying silently, above him stood a completely shocked Superman.
Batman carefully approached the pair and crouched down silently next to Wally. "Shhh," Batman said comfortingly. "It's okay Wally. The bad men are gone, you don't have to worry. You're among friends."
With that Wally looked up. Upon seeing Batman there was a flicker of recognition and Wally immediately clung to Batman.
Batman looked up at a confused Superman. Superman saw the bat-glare and said, "I didn't do anything but talk to him. I swear."
Batman sighed and picked up Wally. He said very quietly, "It's okay, Wally. You know Superman, right?" Batman got a nod from a still calming down Wally. "Well, that's him. He's not one of those scary men."
Wally looked up with relief in his eyes, but he didn't stop clinging to Batman. Batman looked up at Superman and noticed his look of confusion. 'Later,' Batman mouthed as he slowly picked Wally up. He then carried Wally to his own room in the Watchtower. On the way, Wally fell asleep in Bruce's arms.