Knight in Red Armor — Dorothy Daniels

FLIGHT INTO INTRIGUE.

Elaine discovered her husband's talent for elaborate deception on the day of their wedding. At first she admired it, but when she found herself on a plane bound for Europe instead of the Hawaiian honeymoon she had expected, she began to wonder.

Her doubts became serious when she realized that they were under surveillance. Real fear began when she saw two Russian Migs riding shotgun on their plane. Jack's reassurances were of small comfort -- especially when they reached his centuries-old castle in Poland, and she begin to become convinced that he was an undercover agent for the Communists.