The Seventh Secret is a 1985 novel by American writer Irving Wallace using an alternate history of Adolf Hitler having survived World War II.

Soon after a short meeting with the informant, Harrison Ashcroft calls a press conference and reveals that he doubts Hitler would have escaped the war and would be hiding under a false name.

These are American architect Rex Foster, Soviet museum curator Neil Kirvov, and Jerusalem Post reporter Tovah Levine.

Levine helps the four of them by discovering that Hitler and Eva Braun used body doubles to attend functions in their place and who resembled them very closely.

Eva stated the real Hitler died in 1963, and since that time she had been leading the over fifty Nazis left in the secret bunker and that they would rise once again.

The daughter's name was Klara Feigbig; she was already married and is pregnant with Hitler's grandchild, but she has no idea about her actual parentage and lives a peaceful life.

Eva also reveals that the police chief, Wolfgang Schmidt, who appeared to be a trusted anti-Nazi was actually one of Hitler's secret SS guards and was to take over as leader when Nazi Germany was reestablished.