Terry Anzur

When Deputy Chief Irving sidelines Bosch in the Waits affair, the detective focuses back in on unraveling the Arthur Delacroix mystery.

Bosch struggles to manage the fallout of the Brasher shooting as their relationship takes a turn for the worse.

When the assistant to renowned scent expert Napoleon LeNez (Christopher Sieber) is found dead after a "scratch and sniff" book explodes, Ned, Chuck and Emerson try to figure out whom the deadly missive was intended for. Meanwhile, Olive continues her campaign to get Lily and Vivian back in action. Paul Reubens ("Pee-wee's Playhouse") guest stars as Oscar Vibenius.

Butchie and Kai have a joyous revelation; Imperial Beach plays host to a makeshift parade.