"You saved them? The little ones?" the horseman asked, and his voice was the whistle of the wind through the drafty eaves of an attic.
"Well... yes..." William replied, a bit taken aback.
The ghost gestured to the others and they spurred their horses to spread out. They surrounded the carriage quickly. William stared back at the ghost who had spoken.
"What are you doing?" he demanded.
The spectral horseman glared at him. "We are to protect them. And as you saved them, we are to protect you as well. He will want to thank you."
"He? He who?" William asked, voice rising in protest. "Look here. My sister's in there, and I'm going after her-"
He started forward, but the ghost did not move. Instead it glared at him, eyes blazing brightly, and it reached out to touch one finger to his chest.