How shall we pass through them to reach the castle?

By the time they reached the castle, the sun prepared to set on the sea.

By the time they reached the castle, the moon was above the horizon.

That's the nature of the challenge, I'm sure: to reach the castle at the top.

They reached the castle and stood at the closed door.

"How long will it take them to reach the castle?"

The twins would be back in their room before news of the burning could even reach the castle.

The night was well along when they reached the black castle.

What exactly am I supposed to do once we reach the castle?

It was late in the evening when they reached the castle of Trim.