Cuckoo's Calling by Robert Galbraith (2013)

Don't believe I didn't write this one up. This is the first Cormorant Strike mystery. He has recently broken up with his gorgeous girlfriend and his private investigator's business isn't doing very well. A temp agency sends him Robin to help out in the office. She has always dreamed of being an investigator herself, and for some reason she gets along with gruff, straight shooting, one-legged war hero Strike. A friend from childhood asks him to investigate his sister's death. Lula Landry is a well known supermodel and hear death has been ruled a suicide, but the brother doesn't believe it, as she had a lot to live for. Strike goes about investigating with intelligence and intuition, fighting his own demons in the process - and ending up leaning on Robin for help. Thoroughly enjoyable read.