One example of loyalty in the book is when Tomi was excited and pleasantly surprised when Billy told him that oji-chan was alive. As the book stated in page 59 and chapter 13, while Tomi thought to himself “My mind was racing. Grandpa was here! My oji-chan. Alive, and not on the mainland.” This shows how surprised and overwhelmed tomi is when hears the his grandpa is alive and on the same island as him.
Also loyalty was shown in “House of the Red Fish” was when Rico stood up for Tomi when keet and his friend threatened him.