This book is a new story on the fae, but set in a different world than the rest of Marr's novels. In Seven Black Diamonds, we meet Lilywhite "Lily" Abernathy, the daughter of a crime boss, and a criminal herself, but only because of her faery heritage. Protected her whole life up until now, Lily is sent by her father to a school, where she meets others of her kind who turn out to be part of a faery sleeper cell tasked with killing humans. As Lily becomes friends with these half fae, she learns more about her own heritage, begins to fall for one of these faeries, and finds herself drawn into the dangerous world of faery politics.
I really enjoyed this new faery world that Marr has created and love the premise behind it. Faeries and humans are at war over the earth's pollution, which while only hinted at in the books, is beyond reversing, and has wiped out almost entire continents. The technology and human parts of this world are eerily similar to our own, and has left me wondering if this is where Marr believes we are headed. ~ Reviewed by Amy Williams