i found this book at a library book sale. usually i dont buy old books(1967) but this one struck me as interesting because the back cover described a story that sounded like something i'd like.
if you like spy stories: beautiful people, travelling all around Europe, priceless art, and romance... this book is for you.
for you alias fans, one of the main characters reminds me of sydney bristow and the other reminds me of Mr. Sark...

here's the description off the back cover (judge for yourself!): NEVER TALK TO STRANGERS-- The first mistake Danica Hughes made was talking to the attractive stranger who sat beside her on the airplane jetting her to Europe. The second mistake was picking up his attaché case by accident, and carrying it off with her to her hotel in Paris. The third mistake was opening it, and discovering its suspicious contents...
And now Danica knew she could not afford another mistake. Caught in a whirlpool of violence and deception, torn between a magnetic American wheeler-dealer and a devastatingly charming French aristocrat, she fled through a labyrinth of terror in an ancient French abbey, and one false step would be fatal...