A rollicking wartime adventure on the BC coast.A lot has changed in the world since Sophie, Molly, Mark, Harriet, Leticia, and Posy's last adventure in The Silver Lining. Now it's 1940, and the Second World War is making life back home in the United Kingdom very dangerous indeed. Although our intrepid crew has seen their fair share of precarious situations, from being chased by pirates to making harrowing rescues in abandoned mine shafts, their parents decide to once again send them across the ocean and into the care of the eccentric Captain Gunn. This time they head back to the BC coast, making stops in Hesquiat Harbour, Estevan Point Lighthouse, Cape Scott, and Alert Bay. There, they meet real-life historical figures such as Cougar Annie and aviator Jim Spilsbury, and help to recover a precious artifact from a local Indigenous community. Rather than sitting out the war in a safe, quiet place, captain and crew could be in for their biggest adventure yet!

The year is 1938-two years since Sophie, Molly, Mark, Harriet, Leticia, and Posy made international headlines when they uncover the buried treasure of the notorious Brother XII. Since then, life has been decidedly un-exciting for the adventure-loving crew, who feel more at home on the rolling deck of a sailboat than in their stuffy boarding school. But once again, Uncle Bert (a.k.a. Captain Gunn) comes to the rescue when he invites the whole gang on another holiday abroad.The kids trade in their pirate capsfor cowboy hats and head off on a cattle drive in Interior BC. But when they run into a familiar villain, the trip takes an ominous turn culminating in a dangerous mission to an old mine. Will their adventurous ways get the better of the kids this time, or will fortune smile upon them yet again?