
A meticulous psychologist spends his mornings mapping the rhythm of his own pulse as he loses himself in fiction, his sphygmograph tracing the ebb and flow of his excitement on smoked paper. One rainy April morning his quiet routine is shattered by a frantic call and a mysterious classified advertisement—an enigmatic code that hints at a strange, unseen force compelling a young woman to reject her own lover.
When the distraught fiancé bursts into the office, drenched and sleepless, he hands over a photograph of his beloved and pleads for help. The psychologist is drawn into a puzzling case that blends scientific curiosity with an uncanny mystery, as the strange “hammering man” seems to wield an inexplicable power over the woman’s will. Listeners are invited to follow Trant’s methodical mind as he untangles cryptic clues, confronts a baffling psychological phenomenon, and races against time to uncover what lies beneath the odd advertisement.
Language
en
Duration
~48 minutes (46K characters)
Publisher of text edition
Project Gutenberg
Release date
2021-03-18
Rights
Public domain in the USA.

1883–1959
Best known for adventurous science fiction and mystery stories, this early 20th-century American writer helped bring big, imaginative ideas to a wide audience. His novels mixed suspense, spectacle, and a journalist’s eye for pace.
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1872–1951
Best known for early detective and mystery fiction, this American journalist wrote sharp, fast-moving stories and often teamed up with Edwin Balmer. His work includes the pioneering Luther Trant tales and novels such as The Indian Drum.
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