Classified Books in Order

Trainee FBI agent John Smith is assigned to reopen the Roswell case, where a mysterious object crashed in 1947. A fictional investigation combines with fact files and witness material, leaving readers to assess competing explanations.

Two Americans are imprisoned for selling intelligence secrets to the Russians. Fellow inmate Larry Holtz helps them escape, only to find himself in trouble; the fictional account is accompanied by files for readers to examine.

This illustrated investigation explores claims that Apollo 11 encountered alien spacecraft near the Moon. It considers whether the astronauts might have met earlier visitors, presenting the alleged encounter as a mystery for readers to assess.

A mysterious object crashes in the New Mexico desert, prompting competing explanations. This Classified investigation explores the Roswell incident and asks whether the wreckage suggests an alien spacecraft or a secret military experiment.

Scientist Vladimir Alexandrov disappears while attending a conference in Spain. A fictional young KGB officer investigates possible links to his nuclear-winter research, with accompanying files inviting readers to consider the evidence surrounding the real disappearance.

Young computer expert Alice Henreid is questioned about her grandfather's involvement in a supposed wartime experiment that made a ship invisible. Her fictional investigation combines science explanations with documents about the alleged Philadelphia Experiment.

Secret agents visit young computer hacker Alice Henreid before dawn to ask about her grandfather's wartime work. The fictional mystery explores the alleged Philadelphia Experiment, then presents dossier-style material for readers to examine.