In reading order
The Testament of Caspar Schultz
Jack Higgins
The Bormann Testament
Jack Higgins
Year of the Tiger
Jack Higgins
Year of the Tiger
Jack Higgins
The Keys of Hell
Jack Higgins
Midnight Never Comes
Jack Higgins
Midnight Never Comes
Jack Higgins
Dark Side of the Street
Jack Higgins
A Fine Night for Dying
Jack Higgins
Dark Side of the Street
Jack Higgins
The Keys of Hell
Jack Higgins
A Fine Night For Dying
Jack Higgins