Prompt: Create a series of images illustrating the gradual betrayal. In the first image, depict the merchant's demeanor changing subtly, hinting at his hidden motives. Use visual cues such as a sly smile or a calculating gaze. In subsequent images, show the mouse's realization of the betrayal, conveying a mix of caution, concern, and regret. Introduce elements like darkening shadows or a change in the merchant's expression to signify the growing threat.