Daenerys thought a long moment when Jorah spoke. Her eyes narrowed at Viserys as she looked at him. She wasn't the scared little girl anymore who had allowed him to bully her.

"This is your last opportunity, brother," Daenerys' voice turned grave. "Surrender. Or you will die."

Viserys answered by charging forward on his dragon, meaning to knock Daenerys loose. Drogon ducked down and nosedived towards the ground. Then he came back up and hit Viserys' dragon from the belly.