8. The Giant Water Pump

The friends see a strange machine in the river.

The pump in the river

"It's a water pump," says Curly.

"Yes," says Boysie, "It is pumping the water out of the sea and into the river."

"I must go back and tell the Professor," says Grimblegrot.

"Boysie and I can follow the river," Curly says.