Describe jonas'smemory of lily joining his family unit

The excerpt is from a longer essay on huckleberry finn by mark twain. what kind of support is used to develop the writer's main idea regarding how twain brought his characters to life?

Which of these authors wrote a story that revolved around a captains underwater adventures with his crew and a sub marine long before the submarine was actually invented

When mrs. jameson says "it (the desert) won't leave you cold," what does she mean?