Tom was the first to come to a realization of what was needed to be done.

“We must help them!” he exclaimed, and it was characteristic of him that he harbored no enmity.

“How?” asked Ned.

“We must get a force of Indians and dig them out,” was the prompt answer.

At Tom’s vigorous words Professor Bumper’s forces were energized into action, and he stated:  “Fortunately we have plenty of excavating tools.  We may be in time to save them.  Come on! the storm seems to have passed as suddenly as it came up, and the earthquake, which, after all did not cover a wide area, seems to be over.  We must start the work of rescue at once.  We must go back to camp and get all the help we can muster.”

The storm, indeed, seemed to be over, but it was no easy matter to get back over the soggy, rain-soaked ground to the trail they had left to take shelter in the forest.  Fortunately the earthquake had not involved that portion where they had left their mules, but most of the frightened animals had broken loose, and it was some little time before they could all be caught.

“It is no use to try to get back to camp to-night,” said Tom, when the last of the pack and saddle animals had been corralled.  “It is getting late and there is no telling the condition of the trail.  We must stay here until morning.”

“But what about them?” and Mr. Damon nodded in the direction of the entombed ones.

“We can help them best by waiting until the beginning of a new day,” said the professor.  “We shall need a large force, and we could not bring it up to-night.  Besides, Tom is right, and if we tried to go along the trail after dark, torn and disturbed as it is bound to be by the rain, we might get into difficulties ourselves.  No, we must camp here until morning and then go for help.”

They all decided finally this was best.  The professor, too, pointed out that their rivals were in a large and roomy cave, not likely to suffer from lack of air nor food or water, since they must have supplies with them.

“The only danger is that the cave has been crushed in,” added Tom; “but in that event we would be of no service to them anyhow.”

The night seemed very long, and it was a most uncomfortable one, because of the shock and exertions through which the party had passed.  Added to this was the physical discomfort caused by the storm.

But in time there was the light in the east that meant morning was at hand, and with it came action.  A hasty breakfast, cups of steaming coffee forming a most welcome part, put them all in better condition, and once more they were on their way, heading back to the main camp where they had left their force of Indians.

“My!” exclaimed Tom, as they made their way slowly along, “it surely was some storm!  Look at those big trees uprooted over there.  They’re almost as big as the giant redwoods of California, and yet they were bowled over as if they were tenpins.”