This is my favorite book.
It's also Bill Murray's.
It is called "The Razor's Edge" and was written by Somerset Maugham.
It was published in 1944.
It tells the story of some well-to-do Americans from Lake Forest,
who all find what they're looking for in life.
One of them, 'Larry Darrell', loses his life only to save it.
He is the hero, and I think he could be yours.
P.S. Who's "Ruysbroek"?