Chapter 15 Summary

Spencer and Andrew are sniggling on the basement couch while flipping through the TV channels. They see a news story about Ali's DNA testing and some interviews with her classmates. When they switch the channel, it's the reporter chasing after Aria as she gets out of her dad's car. Spencer thinks about what Ian said to her the day he broker house arrest. He told her there was something she didn't know that would turn her life upside down. Andrew leaves to meet with the Valentine's Dance Committee.

As Spencer is climbing the stairs, she hears her sister and mother whispering. Her mother is making Melissa promise to keep something quiet this time. after her sister leaves, Spencer gets the college yearbook off her dad's office shelf. She finds her dad's picture and her mom's picture, which proves her mom was a student...