Ron was bent over, trying to keep Scabbers in his pocket, but the rat was going berserk; squeaking madly, twisting and flailing, trying to sink his teeth into Ron's hand.
¡°Welcome to the Knight Bus, emergency transport for the stranded witch or wizard. just stick out your wand hand, step on board, and we can take you anywhere you want to go. My name is Stan Shunpike, and I will be your conductor this eve¡ª¡±
The yelping stopped abruptly. As they reached the lakeshore, they saw why ¡ª Sirius had turned back into a man. He was crouched on all fours, his hands over his head.
He didn't stop to think. Plunging a hand down the neck of his robes, he whipped out his wand and roared, ¡°Expecto patronum!¡±