The Secret Life of Dottoressa Giulia Verne

DERMALIAN by Sylvia Toy: Aliens long after humans, who having discovered the ruins of the New York Public Library & becoming enamored of humans, establish the Ruins of the NYPL archaeological site & investigate why humans became extinct. La Dottoressa Giulia Verne, a brilliant but quite mad scientist currently assigned to the NYPL site, is suspected of conducting illegal experiments in the middle of the night. Lt. Blondie, an undercover agent assigned to Earth as an archaeologist has been trying to catch la Dottoressa in the act.