This book is an introduction to earthquakes and tsunamis, describing what causes earthquakes and explaining why tsunamis happen.

Overjoyed to be reunited with her fellow ocean-dwelling dragons, Tsunami the SeaWing continues efforts to end the war for Pyrrhia in spite of a dangerous assassin who is threatening all their lives.

"In the wake of a devastating earthquake and tsunami, Yui, fleeing her violent husband, and Hiyori, a young orphan, are taken in by a strange but kind old lady named Kiwa in the small town of Kitsunezaki​​. The newly formed family finds refuge in a mayoiga, a lost house, perched atop a beautiful cape overlooking the sea. While helping to rebuild Kitsunezaki, the three adapt to their new lives and supernatural new home, slowly healing...