Twelve-year-old Lark Heron-Finch is steeling herself to spend the summer on Swallowtail Island off the shores of Lake Erie. It’s the first time that she and her sister will have seen the old house since their mom passed away. And while her stepfather and his boys are okay, the island’s always been full of happy memories—and now everything is different. When Nadine, a close family friend, tells Lark about a tragic boat accident that happened off the coast many years before, Lark's enthralled with the story.

Owen Godfrey is spending his summer in Paris studying science fiction writer Jules Verne, the brilliant mind behind Twenty Thousand Leagues Under the Sea and Around the World in Eighty Days. When Owen and his new friends find what appears to be a dusty copy of Verne’s collected works in an old bookshop, they’re intrigued by the hidden codes written inside.

When the skies dried up, Gloria thought it was temporary. When the dust storms rolled in, she thought they would pass. But now the bank man’s come to take the family farm, and Pa’s decided to up and move to California in search of work. They’ll pick fruit, he says, until they can save up enough money to buy land of their own again. 

Of course, there’s nothing Harriet doesn't like about Marble Island, the small island off the coast of California where her nanu runs a cozy little bed and breakfast. And nobody doesn’t love Moneypenny, Nanu’s old basset hound. But Harriet doesn’t like the fact that Dad made this decision without even asking her.

Jake Simmons hates his new home. The Regency is nothing more than floor after floor of peeling wallpaper and faded glory. Jake misses his old life. He misses the time when his mother was employed. He misses living in a house where the wind doesn’t make the windows whistle.