Anchor: By later advice from America it seemed likely that Danvers had been closely shadowed on the way over.
Entailed: Orders were likely given to follow Danvers.
Contradiction: Danvers was traveling from America.
Contradiction: He was able to make another attempt before a messenger arrived with an order. 
Contradiction: I think there are hundreds of locations ready to be used that way. 
Contradiction: And you wear it while hiding? said A'deem.
Contradiction: A jockey is outside