Two sisters went missing on their class trip—Grace, the outgoing athlete who is friends with just about everyone, and Maddy, the wallflower wilting in her sister’s shadow who'd rather absorb herself in her journal than talk to her classmates. But when Grace is found—injured, with no memory of what happened—everybody thinks she’s lying. It’s hard not to look guilty with Maddy’s blood on her clothes. Desperate to save her sister—and prove her own innocence—Grace must piece together what happened on that school trip.

Most people’s births aren’t immortalized in a police report—but Olivia was born during the infamous Camp Lost Lake murders. Seventeen years later, Olivia’s life looks pretty perfect . . . until she discovers the man she calls dad is not her biological father. Now she wants answers about her bloodline, and the only place she knows to look is Camp Lost Lake. Most people don’t spend their formative years on the run with an alleged murderer—but Reagan did. In the court of public opinion, her mom was found guilty of the deaths at Camp Lost Lake, and both of them have been in hiding ever since.

Eighteen-year-old Addie Blackwood regrets nothing more than one horrible, mistake-filled night last summer. Hours after she hurled the worst words she could think of at her sister, Fiona was found dead at the bottom of a ravine. The police ruled her death an accident, but Addie’s never bought it. Her ballet-prodigy sister didn’t slip and fall; she was pushed. And Addie’s number one suspect: Thatcher Montgomery, the rich kid down the street who always had a thing for Fiona. But when Thatcher is found dead in the same ravine, Addie must admit she was wrong.

Ruby is terrified to cave to her feelings for Sean and risk him crushing her heart. Sean is pumped to spend a week with Ruby in Paris on their senior class trip, and he’ll wait however long until she’s ready to take things further. But when Ruby’s best friend sneaks out the first night to meet a mysterious French boy, Ruby goes after her with two classmates, but caves to another temptation: attending mystery boy’s exclusive party in the Paris catacombs, the intricate web of tunnels beneath the city, home to six million long-dead Parisians. Only they never reach the party.

The fire wasn’t Marlowe Wexler’s fault. Dates should be hot, but not hot enough to warrant literal firefighters. Akilah, the girl Marlowe has been in love with for years, will never go out with her again. No one dates an accidental arsonist. With her house-sitting career up in flames, it seems the universe owes Marlowe a new summer job, and that’s how she ends up at Morning House, a mansion built on an island in the 1920s and abandoned shortly thereafter. It’s easy enough, giving tours. Low risk of fire. High chance of getting bored talking about stained glass and nut cutlets and Prohibition.