You must not be frightened though.
Just go straight on, and you will come all right.

You'll find me on the doorstep." As she spoke, her face too faded quite away, only Diamond thought he could still see her eyes shining through the blue.

When he went closer, however, he found that what he thought her eyes were only two hollows in the ice.

North Wind was quite gone; and Diamond would have cried, if he had not trusted her so thoroughly.

So he sat still in the blue air of the cavern listening to the wash and ripple of the water all about the base of the iceberg, as it sped on and on into the open sea northwards.
It was an excellent craft to go with the current, for there was twice as much of it below water as above.