Since Calvin and Hobbes are popular right now, please know that the entire archive is available online, searchable, for free. This includes ALL the strips, including some that didn't make it into the various anthologies:

https://www.gocomics.com/calvinandhobbes

And if you are insistent on using alt text but are (like me) sometimes not motivated to type out the dialogue, there's even a 'transcript' button in the three-dot submenu. It's short on describing images, but it's thorough on the text.

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