Edmond Hamilton 56 min read

A thousand alarms pour into Police Headquarters as the Invisible Master broods over the terrified city, an unseen menace whose identity will astound even the sharpest reader.

Edmond Hamilton's 1930 story is a rousing scientific-detective mystery. Clever, fast-paced golden-age pulp. Read it for a fun Hamilton whodunit from Scientific Detective Monthly, an unseen criminal mastermind, a baffling puzzle of science, and a surprise ending, in a lively blend of detective story and pulp SF from a great golden-age craftsman.

In its time

Published in 1930, during the 1930s, space opera soars.

Reading it

56 min read (a novelette, room for a turn or two).

Illustrated by

Frank R. Paul