Abby Rivers and Gretchen Lang were best friends, on and off, for seventy-five years, and there aren’t many people who can say that. They weren’t perfect. They didn’t always get along. They screwed up. They acted like assholes. They fought, they fell out, they patched things up, they drove each other crazy, and they didn’t make it to Halley’s Comet.

Abby and Gretchen still kept up, but it was phone calls and letters, then postcards and voicemail, and finally emails and Facebook likes. There was no falling-out, no great tragedy, just a hundred thousand trivial moments they didn’t share, each one an inch of distance between them, and eventually those inches added up to miles.

It was a school where everyone complained about the work load, but ragged on public schools for being “too easy.” Where everyone hated the dress code, but snickered at the “rednecks” who roamed Citadel Mall in stonewashed denim and mullets. Where everyone was desperate to be an individual, but they all were terrified to stand out.

She’d begged her parents to let her go to the dermatologist, like Gretchen did, but only got a chorus of her mother’s favorite number-one hit single, “We Can’t Afford It.”

She could decide how she was going to be. She had a choice. Life could be an endless series of joyless chores, or she could get totally pumped and make it fun. There were bad things, and there were good things, but she got to choose which things to focus on. Her mom focused only on the bad things. Abby didn’t have to.