Title: Dr. Drabble's remarkable underwater breathing pills
Subjects: Fiction, Friendship in fiction, Conduct of life, Conduct of life in fiction, Inventions in fiction, Underwater exploration in fiction, Inventions, Underwater exploration, Friendship, Honesty in fiction, Christian life, Honesty, Christian life in fiction, Children's fiction, Inventions, fiction, Friendship, fiction, Underwater exploration, fiction, Inventions, juvenile literature, Conduct of life, fiction