Very good.

Sleeping Beauty is a 1973 novel by Ross Macdonald.

This one I found surprisingly sophisticated. The plot quite complex.

Private eye Lew Archer finds himself the confidant of a wealthy, violent family with a load of trouble on their hands – including an oil spill, a missing girl, a lethal dose of nembutal, a six figure ransom and a stranger afloat, face down, off a private beach.