The adjective is "ice" because it is describing what kind of blocks they were.
Answer:
Jim Hawkins
The first-person narrator of almost the entire novel. Jim is the son of an innkeeper near Bristol, England, and is probably in his early teens. He is eager and enthusiastic to go to sea and hunt for treasure. He is a modest narrator, never boasting of the remarkable courage and heroism he consistently displays. Jim is often impulsive and impetuous, but he exhibits increasing sensitivity and wisdom.
Explanation:
Subheadings give the reader an idea of what will be discussed in the section. For example, 'How Did WWII Shape Daily Life?' This subheading shows the reader that it will be about how WWII changed the daily lives of people. By the end of the section, the reader should have a firm answer to the question.
