Black Canary raised her head from the boy's mouth gasping for air herself. She pressed on his chest counting the sixth set of compressions in her head. 1, 2, 3, 4…
"Dinah…" she felt Superman's large hand on her shoulder. "I can't hear his heart anymore. There's nothing more you can do."
She let out a shaky sob at his words. She looked at the man next to her; his eyes were sad, tear tracks lining his cheeks. Sobbing again, she raised a hand to her mouth trying to hold back the defeated sound. When she looked away from Superman she caught sight of Bruce at the window. She couldn't hear him through the thick walls but it was clear he was screaming. Diana was pulling the devastated man into her arms as he dropped to his knees. Tears were rolling down her face as he buried his in her shoulder.
Unable to look at him anymore she looked down at the boy on the bed. His eyes were closed, his mouth still open, waiting for the next breath she forced into him. She could feel cold hands wrapping around her heart at the thought of never seeing his lips pulled into his impish smile, hearing his cackle like laugh (something she had hoped he would never grow out of), or never seeing his bright blue eyes light up with mischief.
"No. No!" she shook Superman's heavy hand off. Steadying herself she brought her fist down on Nightwing's chest. His body jolted with the impact. She repeated the action several times, not stopping even when she heard the snap of his cracking ribs.
"Dinah-", Green Arrow started.
"Shut up Oliver!" she brought her fist down once more. When she raised her hand preparing for another hit, the monitor next to her beeped. She stopped and looked at the machine. It was registering a heartbeat. "Clark?" Before she could get conformation from the man, Nightwing gasped and coughed.
"He's alive!" Green Arrow exclaimed.
"Dick?" Black Canary grabbed his face forcing him to look at her. The boy's eyes hadn't opened.
"The walls are still in place." J'onn stepped forward and laid his hand on Nightwing's forehead. His eye's fluttered for a moment before he stilled once more. "I will keep him sedated until the damage can be repaired. I must first find out what was done."