In book two of the American Revolutionary War Adventures historical fiction series, readers ages 8-12 can experience the Revolutionary War firsthand in this novel based on actual events. Twins John and Ambrose Clark find themselves aiding the patriots once again as they help work on a top-secret submarine that could end the war . and also look for a way to rescue their captured older brother. In addition to bringing alive America's war for independence, including information on the first submarine built in America, Submarines, Secrets, and a Daring Rescue: Teaches kids about the Revolutionary War from a kid's perspective Is packed with historical information that is entertaining and educational Contains discussion questions, backgrounds on the real-life historical persons featured in the book, historical letters, and a glossary of key terms Can be used alongside school curriculum and as a homeschool resource After working as spies to aid the Colonies and delivering a message to General George Washington himself , twins Ambrose and John Clark find themselves volunteering for another mission to help the newly forming United States. This time, the boys step up to help transport much-needed gunpowder to the patriots, and end up in an even more dangerous situation--trying to man one of the first submarines. But the biggest challenge may be finding a way to free their imprisoned older brother.