Books with author John Rambeau

Elementary aged illustrated mystery series: "...Mystery of Morgan Castle Morgan Castle has long been abandoned, had been left to an elderly spinster. Gabby is intrigued and becomes curious enough to investigate. In Mystery of the Marble Angel Siblings are discussing a bank robbery that had taken place in a nearby town. The marble angel is a damaged grave marker in a local cemetery. Because of the angel all the threads of the story are brought together. In Mystery of the Midnight Visitor, Gabby finds an empty silver box on the beach. Shortly after that, he notices a fire at Morgan Castle. Who was the midnight visitor? What was he looking for? Mystery of the Missing Marlin The mystery begins when the Marlin is stolen, the singer is left on shore. Mystery of the Musical Ghost Miss Wellington informs Bill and Ham that a man is a Nazi hunter, and that she may know where the man whom the Nazi hunter is seeking may be found. In Mystery of Monks' Island, Gabby meets a boy named Lonnie Martin who lives in the city dump. He trades a broken switchblade for Gabby's slingshot and ball bearings. Turns out Lonnie is on his own, afraid of the police, and is trying to find an island that had been owned by his father's family. He's run away from foster care to find the island to which he hopes he is the heir. In Mystery of the Marauder's Gold, Bill and his adult friend Mr. Ballard set out to try to help a local man who's overfriendliness to strangers may have made him easy prey for some unprincipled visitor. Word of a lost treasure from the days of tall ships in the early years of California adds to the intrigue, and the excitement ratchets up quickly. Mystery of the Myrmidon's Journey. A small boat is nearly slammed into by a cruiser called the Myrmidon. Bill and Ham board her, but soon find that the boat is not as abandoned..." (All books have questions and exercises in the back of each book.)