This book in the Liberty Letters series---for girls ages 10 and up--- is set against the background of World War II Two close friends, Catherine Clark and Meredith Lyons, share in the trials involved in having their fathers in the war. Catherine's father has recently been called as a naval officer to Pearl Harbor from Washington, but because of her brother's illness, the rest of the family stays behind. This disappoints the girls, as Meredith's family has just moved to Honolulu. Both girls involve themselves in the war effort and their friendship proves to be invaluable.