A Teutonic scientist attempts to create a race of artificially created superman who, among other things, can jump a few seconds through time, but only as invisible witnesses to the future goings-on. The story is disturbingly prescient of Nazi ideas of an Aryan Herrenvolk.

The brilliant Dr. Bird might well give Sherlock Holmes a run for his money when solving cases that involved modern science as does the case of the money that disappeared from a teller’s cage right before his eyes. Alas, the solution involved no time travel, but it did involve a time-related phenomenon made famous in a story by an author whose notoriety in sf circles exceeds even that of Holmes’s creator.