Katherine, the eldest of 5 siblings, is the first in her lower class Tudor family to attend school. At the age of 13, she is already beginning her life in the real world. She is discovering that she has a passion for teaching, and she can impact the lives of her young pupils. She learns fast that she is bold and brave as she stands up to a nasty teacher. She also has an adventurous spirit. So when her father is caught up in the sinking of the Mary-Rose, she is dedicated to finding him. Her mission takes her on a voyage into the English Channel.