Leo grunted. “So how do we find Aeolus?”

Jason leaned forward. “You mean you don’t see it?” He pointed ahead of them, but Leo didn’t see anything except clouds and the lights of a few towns glowing in the dusk.

“What?” Leo asked. “That … whatever it is,” Jason said. “In the air.”

Leo glanced back. Piper looked just as confused as he was.

“Right,” Leo said. “Could you be more specific on the ‘whatever-it-is’ part?”

“Like a vapor trail,” Jason said. “Except it’s glowing. Really faint, but it’s definitely there. We’ve been following it since Chicago, so I figured you saw it.”

Leo shook his head. “Maybe Festus can sense it. You think Aeolus made it?”

“Well, it’s a magic trail in the wind,” Jason said. “Aeolus is the wind god. I think he knows we’ve got prisoners for him. He’s telling us where to fly.”

“Or it’s another trap,” Piper said.

The Lost Hero, Chapter XXIV