Glass is the second novel in the verse novel series Crank by Ellen Hopkins, published in hardcover in August 2007 and in softcover on April 7, 2009. The third book of the series, Fallout, was published in 2010. Like the previous novel in the series, Glass has been the subject of controversy, with the book being partially responsible for a public appearance by Hopkins getting cancelled due to parental complaints.
Kristina thinks that now she has a baby to care for and love, she can let go of the old addiction. But she finds herself searching for Robyn, her old contact for the "street crank". While over at her house she meets a boy named Trey and starts to crave for people to look like they want or need her. Once she gets home, she begins to work at a 7-Eleven to get the money to buy more crank. The manager there is a porn dealer and offers her a job as a prostitute, but she declines.