In the meantime Mrs. Darling had put the children to bed in
unwonted silence and lit their night-lights. They could hear
Nana barking, and John whimpered, "It is because he is chaining
her up in the yard," but Wendy was wiser.

"That is not Nana's unhappy bark," she said, little guessing
what was about to happen; "that is her bark when she smells
danger."

Danger!

"Are you sure, Wendy?"

"Oh, yes."