Dr. Bartlesby was found murdered at the Field Museum. There is a police investigation ongoing when Harry Dresden arrives following his own clues: magical hot spots.
Dresden listens in one talking with the museums' security man.
Dr. Bartlesby's was a visiting professor doing a details examination of the Kahokian artifacts, a traveling exhibit. He had two assistants: Alicia Nelson and Li Xian, apparently graduate students according the the Field Museum's security man being interviewed by police officer Henry Rawlinsinvestigating Dr. Bartlesby murder.