“Straight away yonder, my boy—south, towards the British possessions.”

“Make haste then. Take hold of my hand and let’s run like father calls double. Let’s get to that river we drove to in the car months ago.”

“Yes, we might go that way,” said the Doctor, thoughtfully. “But why did you choose that route?”

“Because I want to catch some fish for dinner.”

“Without hook or line?”

“I shall go into the shallow, where we can see them, and splash them out with my hands.”

“To be sure, or perhaps spear one with a long, sharp stick.”

“Yes, I’ll try that. Oh, do let’s go on at once. I want to begin.”

“Very well,” said the Doctor, after a long, anxious look round. “You go first, and I’ll follow.”

“Let’s walk fast,” said Phil.