Vigilia's Tempest

When John Vigilia, a writer and stunt
pilot, travels to Europe to explore the truth behind a story
he's been told about a young boy who flew as Lindbergh's
secret copilot on his trans-Atlantic flight, he finds
himself in the middle of international intrigue. While
investigating the story, John realizes he is being followed,
and someone has even tried to kill him. Has he discovered
the conspiracy of the century, or is it just an old man's
hoax?
After tracing Ariel Angelucci through
Ireland, Rome, Como, and Munich, Vigilia finally finds him
in Switzerland. Angelucci reveals that he did indeed fly
with Lindbergh. Not sure if he believes the story, John
takes the man for a flight in a biplane to discover if he
really knows how to fly. The old man wants to perform some
"stunts," but suffers a heart attack at the top of a loop,
jamming the controls and causing the aircraft to
crash.
When John Vigilia regains consciousness in
a private clinic on an island in Lago Maggiore, he realizes
he is being kept prisoner because of what he knows.