The Blue Lights

An American millionaire's son has been kidnapped in Paris. They want desperately to include detective Duvall in the investigation...
Frederic Arnold Kummer (1873-1943) was an American author, playwright and screen writer. He wrote in various genres including spy and international mysteries, detective novels, romances and non-fiction. Under the pseudonym Arnold Fredericks he wrote a series of mysteries featuring the detective Richard Duvall.