"Classified object" by John Victor Peterson is a science fiction novel written in the mid-20th century. The story revolves around a mysterious cylindrical object that lands near New York City, drawing the attention of military and scientific authorities. The novel explores themes of extraterrestrial life, advanced technology, and the implications of discovering alien intelligence. The narrative follows George Winthrop, a physicist who witnesses the arrival of the strange object and becomes heavily involved in investigating it alongside military personnel. As they explore the cylinder, they find both a highly advanced fission bomb and two books: one filled with alien schematics and the other a disturbing comic depicting an invasion of a pastoral world. As the story unfolds, Winthrop realizes the true peril of the situation: the ship and its crew, possibly in suspended animation, pose a significant threat to Earth. In a climactic and strategic decision, Winthrop ultimately reverses the ship's course back to its origin at Sirius, preventing a catastrophic potential invasion that could arise from the advanced weaponry aboard. The book concludes with a foreboding note about the nature of alien civilizations and their intentions towards Earth. (This is an automatically generated summary.)