Lucy Brick, a college student, starts noticing delivery drivers on motorbikes zooming all over Manhattan. They look alike and act weird. They use chopsticks to "charge" themselves. They even ignore traffic warnings. Some of Lucy's friends have joined the drivers. They invite Lucy to sign up, too. Her friends tell her it's the best time in their lives. Being a dliv gives them lots of energy. Better, it makes them more popular than their wildest dreams. It's very tempting! But Lucy begins to wonder what has really happened to these drivers. How can they have such abilities? Could joining them be fun—or dangerous? Lucy is going to find out. Velocity is the first in the series The Activ8r Adventures, where AI enhancements to human beings give them amazing powers...but at what cost?