For a second, nothing happened. Then, the roar of an engine. A black sedan came tearing down the hill, moving way too fast for the slick road. Elara opened her mouth to scream, but the car hydroplaned. It spun, mounting the curb and smashing directly into the front of the old First National Bank.

The townspeople emerged from their homes, blinking in the sudden stillness. They surveyed the damage, shaking their heads in wonder at the sheer force of the storm. But Polly just grinned, her hair plastered to her head, her eyes sparkling with the thrill of the adventure. She had danced in the torrent, and come out victorious.

Here's a more in-depth look at torrenting and Pollyfan:

Most people thought Pollyfan was a virus. Others thought it was a prank—terabytes of junk data disguised as a masterpiece. But Elara had found the hash key etched into the back of a vintage circuit board she’d bought at an estate sale. It was an invitation.

In the context of torrenting, a seeder is a user who has a complete copy of the file and is sharing it with others. A leecher is a user who is currently downloading the file but hasn't completed it yet. Peers are users who are both downloading and uploading the file simultaneously.