In the seventh volume of the "Submarine Outlaw" series, Alfred takes his homemade submarine into the Southern Ocean to thwart the actions of the Japanese whalers. In Australia, he is mistakenly accused of sabotaging an oil tanker, forcing him to escape to Tasmania. There he meets up with Merwin Hughes, an eccentric environmentalist, and together they travel south. They are followed along the way by a friendly blue whale and her calf, and a bond is established. Soon after, they encountera tanker on its way to illegally refuel the whalers' ships. When Captain Paul Watson arrives aboard the Sea Shepherd Society's flagship, the Steve Irwin, to stop the whalers, Al must first try to save the mother and calf even as he helps Watson fight off the whalers. Al learns that the war to save the planet is being waged by dedicated individuals, each contributing in his or her own way, and that every action, large or small, matters greatly.
Philip Roy continues to travel back and forth between Nova Scotia and Ontario, keeping residence in both places. Whenever possible, he visits the places he writes about in the Submarine Outlaw series. From 1999 to 2001, he lived on the island of Saipan, which features in Ghosts of the Pacific. Recently, he travelled to India to research the fifth book in the series, Outlaw in India, and to South Africa for book six, Seas of South Africa. Book seven, Eco Warrior, will be set in Australia, which he has recently visited. Travelling makes for great adventure, Philip contends. The only thing better is writing about it and visiting schools to share the stories and research with young readers.