1. The stories of King Arthur and his court have a long history. Research the following elements of Arthurian legend that are mentioned in this book: Merlin, Arthur, Isle of Bardsey, Emrys, Thirteen Treasures of Britain, Nimue, and Avalon.

2. Jim Gordon, Terry, and Isabella are all engaged in research projects in Baja California. Jim is a historian, Terry is a geologist, and Isabella is a marine biologist. Find out more about these careers and what other types of research they might do.

3. Write a ballad or poem about Kate and the Horn of Merlin.

4. What kind of marine life really lives off the coast of Baja California? Does Barron describe his setting and its inhabitants accurately?

5. This story ends with many questions.

Will the team get a permit to continue its research? Is Terry dead? What will happen to the wreck...