An episodic novel stitching minor romances together using detective story tropes.
arbed in black, with white cuffs and collars, all rattling away steadily at typewriters. Every now and then, from some hidden office, a bell rang decisively, and one of the girls would rise from her machine and pass noiselessly out of sight to obey the summons. From time to time, too, the darky servant with marvelous manners would usher somebody through the room where the typewriters were rattling, into the unseen office. First the old woman went--shakily, clutching her photograph; then the thin child with the bundle, staring at everything; then the two fat policemen, in portentous single file, helmets in their white-gloved hands, oiled hair glistening.
Gatewood's turn was approaching; he waited without any definite emotion, watching newcomers enter to take the places of those who had been summoned. He hadn't the slightest idea of what he was to say; nor did it worry him. A curious sense of impending good fortune left him pleasantly tranquil; he picked up, from the silver tray on the table at his elbow
This was a great idea: a nice man runs an agency that finds people. Sometimes people you don't realize you've been missing! Chambers is a good writer BUT there's no suspense, no excitement, no chase. Plus it's repetitive. A good idea, poorly executed.