Harry is waiting for his retirement. When 2 cases fall on his lap. A "Drop" of blood from 22 years ago. And the most important one. A jumper who literally took the "Drop". Harry does what he does best. The end leaving us waiting for the next Harry Bosch novel.
Harry Bosch is one of my favorite characters. His hard-boiled detective ways. Connelly has made a legend.
One of the best parts is Connelly explaining the jumper after he splattered to the ground OUCH!