All the Little Raindrops’s by Mia Sheridan (paperback)

It’s senior-year spring break, and Noelle Meyer and Evan Sinclair have been kidnapped. Neither knows why they were chosen, only that they share a tragic past: Evan’s father got away with killing Noelle’s mother, effectively ruining her family when the death was ruled an accident. Despite the connection that should have made them enemies, the teens instead unite to face their other common denominator—their abductors. Noelle and Evan survive one sadistic circumstance after another, eventually making a harrowing escape. But every happy ending comes at a price… Years later, Evan, now a private investigator, revisits the crime when he learns it may be ongoing. He reaches out to Noelle for help, and they discover that the answers lie with a man known only as the Collector. To close their case and solve the ones that followed, Noelle and Evan must unmask this mysterious spectator—the only man who knows enough secrets to take their captors