Answer :
Final answer:
In Chapter 26 of To Kill a Mockingbird, the surprising 'secret' Atticus reveals is that he's an excellent marksman, which reveals itself when he kills a threatening mad dog with a rifle.
Explanation:
In Chapter 26 of To Kill a Mockingbird, the 'secret' that Atticus reveals to his children, Scout and Jem, is that he's one of the best marksmen in Maycomb County. This comes as a surprise to the children, given that their father is generally humble and prefers to lead a simple, unassuming life. The revelation occurs when a mad dog threatens the neighborhood and Atticus, armed with a rifle, displays his sharpshooting skills to kill it swiftly and maintain the safety of the community.
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