Kingsolver's tone shifts to more factual over page 50 and ahead.
Hopeful because he had hopes that one day he too could be freed
Answer:
Summary of Deep Survival: In extraordinary circumstances, like accidents or catastrophes, some people survive and others die, such that sometimes things lead you to believe that the first ones die and the second ones survive; this book explains, using numerous stories of accidents and catastrophes, and by exploring the latest scientific theories – from neuroscience to the theory of chaos – what makes one person die and another survive.
Not having the excerpt here, I can only help you to find the answer. Mood is the feeling you get when you read the passage. Foreboding is fearful or apprehensive. Welcoming is or can be joyful and accommodating or making someone feel comfortable in their surroundings. Sorrowful is sad or mournful. Optimistic is positive, hopeful, and confident about your future. As you read the passage, which of these are you feeling or closely matches your feelings.