"The Case of the Extinguished Flashlight" is an exciting detective novel by the famous author Groner Auguste. This book tells the story of the mysterious disappearance of a precious flashlight in a wealthy mansion. Detective Sherlock Holmes and his incomparable friend Dr. Watson undertook this complex investigation. They reveal the intricate steps of the crime, revealing every nuance and breaking the cunning scheme of the criminal. This book is full of mysteries, intrigue and unexpected turns of events that keep the reader in suspense until the last page. "The Case of the Extinguished Flashlight" is a real masterpiece of the detective genre that will leave you enthralled from the first to the last page.