Tony stark is the last Siren alive. He expresses his feelings with singing. His singing is said to atravt angels. A LONG time ago, a thousand sirens roamed the earth, but they were hunted, now, there extremely rare.
Right now he is being summoned. But he is in a shield meeting.
"Stark! PAY ATTENTION"
All the eyes went to the avengers pack omega. Tony fists were clenching and unflinching.
"Tony?"
Bruce said, snapping his fingers catiously. The avengers knew he was a siren, but the shield didn't. If they knew, they would want to experiment on him.
"Summoning"
Was all he could get out before large beautiful wings flashed outward, knocking everyone back. They were a gorgeous red and gold. First had dropped as Tony looked over at Steve.
"Alpha"
He said flatly, Steve nodding once before tony smirked. He raced forward and grabbed a beta, and of course he would grab Bruce. It was Bruce's turn after all. The avengers agreed tony has to bring at least one beta with him since 'The incident'. Tony smirked and transformed.
There, where tony once stood, a pitch black wolf with black silky gorgeous wings folded on its back. A moon present cape wrapped around his shoulders and his teeth were to the point of a sharks jaws, dangerously sharp.
A ball of light surrounded them as the wolf grew, to the size of a human. The large cape flowing behind him as they disappeared. The avengers were stuck explaining with fury and Bruce was here. Bruce saw a girl standing there, glasses on. She was in a very expensive looking outfit as she looked around catiously. Bruce stayed in the shadows as the wolf stalked forward.
"Another dumb spirit"
The girl mumbled. Tonys eyes narrowed.
"SILENCE, Snowfall Frost if you don't change your ways, the world you know will die"
The wolf snarled back, his eyes narrowing as a paw slammed down.
"How?"
The girl questioned, Bruce could tell the girl was shaken up, scared of the large wolf in front of her.
"I see a cold wind blowing through,
I see days neither fun nor free"
Tony smirked, a cold breeze making  the girl shiver. Bruce was in awe at his omegas voice. It was beautiful.
"I see a future caused by you,
I see a path not to be"
The wolf said, pointing a paw at her. Bruce noticed tony took and alpha stance at this.
"The future should be filled with manic,
Dreams and wishes"
Bruce saw out of the cold wind that surrounded them, a bunch of people were cuddling something, no, an animal. Bruce's eyes widened as he realised that was them and Tony!
"Brought to life.."
Bruce also noticed as he sang this part, he sounded a little, sad.
"But the days ahead are dark and tragic,
No time for HOPE when all is STRIFE"
Bruce noticed the snarl afterwards. Bruce suddenly had an idea. And oh boy, Steve was going to love it. The avengers never could cuddle  for more then half an hour cause of duties they all had.
"Whatever might have been,
All the dreams that shifters share,
Because of You snowfall frost,
The future is a cold nightmare"
Bruce heard growls and saw a bunch of Dragon like creatures come from the sky.
"Windigos, there not real, there just a silly children's tale"
Bruce felt shivers role UP his spine as Tony gave a hard laugh.
"They are real, and if u don't stop now, there will be no future left"
Tony growled. Bruce heard the girl start to tell in panic as the dragons neared closer to her. Tony laughed again and turned towards Bruce.
"Let's go"
Tony said, a wing wrapping around Bruce as he felt the world start yo spin. He could have sworn he heard the snapping of bones from where the girl was.