There are several key moments that could be considered a climax:
* The discovery of the "lost city": This event, while exciting and seemingly fulfilling Homer's dreams, is revealed to be a fabrication by his own father. This disillusionment is a major turning point for Homer, forcing him to re-evaluate his life and the meaning of adventure.
* The encounter with "The Wild Man": This confrontation with the mysterious figure, while initially terrifying, ultimately leads Homer to understand that true adventure isn't about conquering or escaping, but about embracing the unknown and finding solace in the face of fear.
* The final journey to the "real" lost city: This journey, undertaken with his sister and fueled by a newfound perspective on life, is not about finding a physical place, but about finding a sense of belonging and purpose in the world.
The ultimate climax, however, is the realization that Homer himself is the "Lost City." Throughout the book, Homer's quest for the lost city is a metaphor for his search for identity and meaning in his life. He discovers that true adventure isn't about finding a place or a treasure, but about exploring the inner depths of oneself and accepting the person you are, flaws and all.
So, the climax is not just a single event, but a process of discovery, disillusionment, and ultimately, acceptance. Homer's journey leads him to understand that the greatest adventure lies not in the external world, but within himself.