Anchor: That's it!" And Tuppence led the way upstairs.
Entailed: Tuppence said, "That's it!" and went upstairs. 
Contradiction: Tuppence is a mute who can't climb stairs. 
Contradiction: The boy is asleep in bed.
Contradiction: Two men work on the roof.
Contradiction: There is absolutely no chance, in any known universe, that he was right about what he said.
Contradiction: There is a woman and child walking.