Estelle Martin / Star Light — Martha Ross — Very religious student. (Missing in the original version) People in the main timeline: Izowski — Police sergeant guarding Dr Frost Chief of police Prehistory (Helen Fisher's travel): Old Man — a Neanderthal man who found Helen and took care of her The war world (Robert Monroe's travel): Igor's sister Margri, a group commander in the war against aliens References External links Full text of Elsewhere on the Internet Archive (The original 1941 version) Short stories by Robert A. Heinlein Science fiction short stories 1941 American novels Works originally published in Analog Science Fiction and Fact American novellas 1941 short stories