SO SO GREAT. A chilling and moving sci-fi thriller and one of the best novels, teen or adult, that I’ve read concerning parallel worlds. More raw and complex than any of the easy comparisons like Hunger Games or The Host. Simple yet beautiful writing and deep characterization lean me more towards a comparison to Archivist Wasp, one of my favorite reads this year. Absolutely wonderful. I will be looking forward to more from Everett.