Do you think Mr. Arthur Radley is valiant? If so, why? How is he valiant? What sort of a audacious thing does he do to save the children from the damnable, yet obscene Bob Ewell?

Boo puts himself at risk and takes the life of another man in order to protect the children.

Arthur put himself at a precarious risk and saves the children. He took the life out of another man (Bob Ewell) and saved the children.

no, i dont think hes valiant (whatever that means)