The Man Next Door (novel)

It was published by Random House in May, 1943, and reprinted in 1976 by Popular Library and in 2004 by Black Dagger Crime (ISBN 978-0754086543).

She is in love with him, and jealous that Blake has been spending time with Christine's elegant penthouse-lifestyle sister, Angela Favor.

In order to protect Blake from discovery, he offers to dispose of Rantoul's body and the evidence, if Maida will find information about airplane movements for him.

Smith is obviously an enemy spy and he has a hold on Maida to find out more and more intelligence on wartime materiel and personnel movements.

[2] Cypert also notes that The Man Next Door is one of four Eberhart novels published, between 1943 and 1946, that involve a number of questionable characters who are discovered to be Nazis or Nazi sympathizers; the other three are Wolf in Man's Clothing, Wings of Fear, and Five Passengers from Lisbon.