Anchor: We had vainly tried to trace the fourth letter, which Mrs. Inglethorp had written on the evening preceding her death. 
Entailed: Mrs. Inglethorp wrote the fourth letter before she passed away.
Contradiction: Mrs. Inglethorp was not a letter writer so she could not have been the author of the fourth letter.
Contradiction: Three boys are playing tag outside.
Contradiction: They are executives.
Contradiction: Three women with machine guns fire mercilessly at the sexist Emperor.
Contradiction: The boy eats a treat.