Nasibov, A. Secret Cache on the Elbe (Taynik na Elbe), 1960. In Russian.

Александр Насибов.
Тайник на Эльбе. / Иллюстрации художника Е. Аргутинского, переплет художника Ю. Макарова. Серия: «ФП» (Фантастика. Приключения).
2-е изд. — Москва : Профтехиздат (Всесоюзное учебно-педагогическое издательство), 1960.
440 с. : ил. ; Уменьшенный формат. Твердый издательский переплет.
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Alexander Nasibov.
Secret Cache on the Elbe. / Illustrated by E. Argutinsky, Binding by Yu. Makarov. Series: "FP" (Science Fiction. Adventure).
2nd ed. — Moscow : Proftekhizdat, 1960.
440 pp. : ill. ; Reduced (pocket) format. Hardcover. In Russian.

This 1960 second edition of Alexander Nasibov's Secret Cache on the Elbe is a classic representative of the Soviet military-adventure genre, specifically the subgenre of "espionage thriller" (shpionskiy detektiv). The text provides a deep dive into the internal logic of post-WWII intelligence operations, including the arrangement of the plot centered on the hunt for a hidden Nazi archive in the closing days of the war. Set against the atmospheric backdrop of the Elbe river in 1945, the story follows Soviet counter-intelligence officers as they race against Western agents to secure a cache containing secret documents on experimental German armaments and strategic intelligence. Nasibov, known for his dynamic storytelling, masterfully weaves historical tension with the suspense of clandestine warfare.
The volume is part of the sought-after "FP" (Science Fiction. Adventure) series issued by Proftekhizdat. Its physical identity is defined by the distinctive hardcover binding designed by Yu. Makarov, while the interior features evocative illustrations by E. Argutinsky, which capture the gritty realism and dramatic stakes of the era's adventure fiction. Spanning 440 pages in a compact, portable format, this edition was highly popular among the Soviet youth and workers' technical schools for which the publisher was known. For bibliophiles, collectors of the "FP" series, and historians of Soviet pulp fiction, this 1960 Moscow imprint is a vital primary source, documenting the mid-century fascination with the "secret front" of the Great Patriotic War and the early Cold War narrative tropes.