Exquisite. Absolutely exquisite. The YA genre lacks great thrillers. Sure, I’ve read some good ones, but most aren’t exclusively thrillers. Usually, they have sci-fi elements and occasionally they have fantasy woven in. Still, even if you classify those novels as ‘thriller’ and then weighed those books against other genres, it’d still be the smallest genre of YA fiction. This novel is pure thriller, and it has one of the best qualities I’ve ever seen.