What is the climax in message a bottle book?

The climax of "Message in a Bottle" occurs when Theresa Osborne confronts Garret Blake while he is giving a book reading in Wilmington, North Carolina. She confronts him about the letter she found in the bottle and accuses him of sending her mixed signals and leading her on. This confrontation forces Garret to confront his true feelings for Theresa and acknowledge their connection while also coming to grips with the past that he has been running away from. This moment of emotional intensity and revelation marks the peak of the story's dramatic arc and sets the stage for the resolution of the main conflict between the two characters.