The Ancient Magus' Bride Jack Flash and the Faerie Case Files Vol 2

ALL THAT GLITTERS

Jack and Larry have accepted a job from the mage Echos to retrieve a stolen dragon egg. With both human and fae help, they learn of an actress held captive in a run-down theatre and the "gemstone" necklace she was given. The detectives search for their quarry, but someone else has beaten them to her. Now pursued by men in black suits, Jack and Larry must find the egg, the actress, and the truth.

By Godai, Oikawa & Yamazaki