THE REUNION

Middling debut thriller about a group of troubled teenagers and the dark secret that stalks them after they become adults.

What awful deed took place by the shores of Loch Fyne oh-so-many years ago? Walker, a BBC investigative journalist, will remind her readers again and again that something tragic indeed happened on that outing to the Scottish Highlands in the late 1970s. The perpetrators were a group of disturbed teenagers lodged at The Unit, a mental home near Edinburgh. In the chapters set way back when, tensions among the gang are clearly ready to combust. Danny Rintoul is a child rapist. In her manic phases, pyromaniac Lydia Young explodes, threatening to torch the place. Alex Baxendale steps boldly out of the closet and launches an affair with a woman on the staff. Innes Haldane is less troubled, more treatable, and thus, by the time she’s an adult, one of the group’s better-adjusted graduates. But whatever happened in the Highlands claims its due years later, first on Innes, then on all the others. A former member of the group leaves Innes a phone message that goes unanswered. Then the caller turns up dead. Shortly after that, another group member dies, an apparent suicide. And then someone kidnaps yet another former member’s child. The author’s ’70s and present-day plot lines circle each other like jets in a drawn-out holding pattern. Like a good flight attendant, she parses out clues to her passengers and keeps promising that something big is coming. But it’s not enough to prevent riders (or readers) from growing weary. Alternating points of view and characterizations that don’t go beyond basic psychiatric diagnoses keep empathy, and thus suspense, at bay. The ending does deliver: the awful deed was indeed awful.

Cuts from character to character and one year to another make for a choppy ride.