I've written another (this time shorter) WWII historical novel, The Laconia Incident. It's a true story about a U-boat commander who sunk a British troop ship only to discover it had 1,800 Italian POWs aboard along with their Polish guards, and British passengers and crew. What followed was an unprecedented rescue mission of ALL survivors. I will send you a copy if you're interested? I'm at 240boat@gmail.com.