It is as if they crossed over into another dimension where time and space have a different relationship.

He was also in the first group to cross over into the mirror universe.

I've been trying on this small place to cross over into their country.

The doors opened and she crossed over into a small dark space.

"We're very interested in something that can cross over into the mainstream."

What has happened ever since is that people have started to cross over into other forms.

He has had much success crossing over into the American comic book market.

Like I'm about to cross over into the promised land.

I am trying to save the people, doing my best to cross over into Canada before the soldiers find us.