If Spider hadn't barked
And TWiB had been able to reach Arthur, could she have actually done anything to him? She didn't seem to have any power over adults.
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House. My room. Cant walk. My medal. My father. Father, dont!
Doubtful. She had a dozen chances aside from that one. One of the first times you see her she is standing right behind him without him knowing.
"The Martian Manhunter is the heart of the Justice League." - The Flash (Barry Allen)