The roll of thunder was now heard by the pair but it was not heeded. Bit by bit they made their way along the newly-discovered slope; step by step they went farther away from their companions.

Suddenly a flash of lightning shot down a tree! The next minute there was a downpour of rain, like the dashing of a cloud burst.

"Oh!" screamed Dorothy. "What shall we do?"

"OH! WHAT SHALL WE DO?" CRIED DOROTHY—Page 155.

"Get under the cliff!" ordered Tavia. "Quick! Before the next flash!"

Grasping wildly at stumps and brush, as they made their way down the now gloomy slope, the two frightened girls managed to get under some protection—where trees, overhanging the rocks, formed a sort of roof to a very narrow strip of ground.

"Oh! What shall we do?" cried Dorothy again. "We can never make our way back to the others."

"But we must," declared Tavia. "I'm sure we cannot stay here long. Isn't it a dreadful storm?"