Rick had no answer to that. "Makes no sense," he agreed. "Unless there's something he doesn't want us to see. That dynamite sure discouraged our trip to his third station!"


CHAPTER VII

Casa Guevara

The scientific party lost only one day because of the dynamite theft. Governor Montoya supplied more explosives and the firing schedule continued. Now, however, the dynamite was guarded by police supplied by His Excellency. Police also were in evidence around the Hot Springs Hotel. No more chances were being taken.

After three days, the scientists began to have a better idea of what was going on in the earth beneath them, but Rick and Scotty could make little sense of the mass of data. Even the picture being filled in by Dr. Williams was confusing. Now, two magma areas were showing where only one had shown before.

Esteben Balgos answered Rick's plea for an explanation. Over an excellent dinner of roast suckling pig and bananas steamed with lemon juice, the volcanologist took time to answer their questions.

"There is much we do not know about volcanoes," the Peruvian scientist began. "For example, we do not know exactly what causes magma to form. Magma is, in simplest terms, molten rock. Some event takes place far below, where the earth's crust ends and the mantle begins, and the rock melts."

"How far below?" Rick asked.

"The distance varies. Under the ocean trenches, for example, the mantle may begin only four miles down. Under some of the mountainous land masses it may be closer to forty miles."