It was a great day for a trip to the seaside. Glen and Sarah were sitting in the back, Mum was driving, and Dad was studying the map.
“How much longer, Dad?” said Sarah.
“A few more miles. There’s a long road tunnel coming up. It’s quite new. I’ve not been through it before.”
There were steep hills around them now. The road was full of bends.
“Here’s the tunnel!” Mum said.
It was a very long tunnel, and quite dark. At first, they couldn’t see the other end. Then there was a bend and in the distance, they could see daylight.
“It’s a lot longer than I thought” said Dad.
At last the tunnel ended and they drove out into the sunshine.
“What’s going on? Quick, stop!” Dad yelled.
Mum slammed on the brakes. Ahead of them the road had disappeared. There was just a rough track.
“Turn round and go back!”
Mum turned the car. But there was no road tunnel, just a cave in the side of a high cliff.
“What’s happened? Where are we?” said Glen in a scared voice.
“I don’t know,” said Mum. “It looks like we’ve come into a different world.”