The books in the Merril Collection are mostly meant for adult readers of science fiction, fantasy and horror. However, YP fiction (fiction meant for slightly younger readers) is also collected, if it is of unusual merit. Holly Black's White Cat certainly falls into this category.
Cassell Sharpe is a student in an expensive private school. He is the family failure, the sole member of a family of magically talented criminals who has no magic. He compensates by practicing his mundane illegal skills upon his classmates. When Cassell's family brings him into their dangerous world, he and his friends use their unorthodox skills to save the lives of his brothers. The threats to life and limb are more easily resolved than the issues of trust within his complex family. This is book one of The Curse Workers, and I look forward to reading the next in the series. In the meanwhile, I am going to read all of Black's previous novels.