Possible Clues:

• Beau ___ (noble act)
• Romantic tale
• Wren's "Beau ___" of literature
• P.C. Wren's "Beau ___"
• Romantic story of strangest expedition
• P. C. Wren's 'Beau ___'
• Adventurous tale
• Beau -- (noble action)
• Beau chaser?
• Heroic tale