"Nine-year-old Nanea Mitchell may be the youngest in her family, but she still wants to "dip her paddle in" and be useful. She knows she's grown-up enough to help in her grandparents' market. But before she can prove that she's ready for more responsibility, the unthinkable happens: Japan attacks Pearl Harbor, the naval base where her father works, and America is at war! With friends and family missing, and rumors of more attacks to come, Nanea worries...

"The puka shells jingle in my hand. I don't want to lose them, so I slide the necklace over my head. But as I pull my hair out from under the string of shells, the ground drops from beneath my feet. I feel the whoosh of an ocean breeze, and then a pink mist covers my eyes . . . What if you suddenly found yourself in Nanea's hometown of Honolulu during World War Two? Together, you and Nanea could send secret messages for the war effort or work in a...