“These guys are very territorial,” Bear said quietly, “and bad-tempered with it. We won’t even let them know we’re here. They’ll chase us, and they’ll catch us.”

Bear and Evie quietly backed away and made their way upstream, until the hippos were out of range.

Before long they came to a shallow bit of river. It was very wide and Evie could see the bottom.

“We’ll be safe here,” said Bear. “Hippos prefer their water deep and calm, to support their weight.”

At long last they could fill up the bottle again. Evie splashed water on herself – it felt amazing to cool down after all this time.

When they moved on, she saw some tough-looking green fruit the size of small apples hanging from a tree.

“Are those figs?” she asked. “Our neighbour has those in their garden.”

“They are indeed,” Bear smiled. He gave one of the fruit a twist and it came away easily. “Ripe for plucking.”

They picked a couple of handfuls. Some went into Bear’s rucksack and they peeled a couple to snack on as they walked.

They tasted good. Every meal is a feast, Evie thought. And the ingredients for it are all around us.

They walked a little way after that, until Bear stopped. “Decision time,” he said, as they faced a fork in the river. Two streams flowed into the one that they had been following. They could see the tops of the mountains, but they couldn’t see the glacier they were heading for.

“We should stick to plan A if we can,” Bear said. “Which of these rivers is going to lead us to the glacier?”

“I’ll check,” Evie said, reaching into her pocket for the compass. She was just turning it in her fingers, trying to find east, when –

“Oh, no!” said a voice that didn’t sound like Bear.

Evie looked up from the compass to see what was wrong. She froze.

The rivers, the trees, the mountains, everything had vanished.

Evie was back in the entrance to the food tent.

“Oh no!” came the voice again. Whoever it was definitely wasn’t Bear. And they sounded really upset.

Evie looked inside the tent. It was Harry.

Something was really wrong. His face made it look like the worst thing ever had happened.

“I spilled some mayo on my jeans,” he said. “Can you see the mark?”

“Your jeans?” Evie said in disbelief. Why was he so upset? And what on earth had happened to her?

She shot another look back out of the tent door, looking for the savannah and the river.

No. Just Camp.

And Harry.

“It’ll never come out,” he wailed. “Mayo’s got oil in it and it’ll soak into the cloth. You’ll be able to tell. I need to wash them before Construction Challenge and there’s no time to do it properly.”

Evie started to roll her eyes. It was only clothes!