“Could you find your way back to your own land?” asked Perry.  “And could you aid David in his search for Dian?”

“Yes.”

“But how,” persisted Perry, “could you travel to strange country without heavenly bodies or a compass to guide you?”

Ghak didn’t know what Perry meant by heavenly bodies or a compass, but he assured us that you might blindfold any man of Pellucidar and carry him to the farthermost corner of the world, yet he would be able to come directly to his own home again by the shortest route.  He seemed surprised to think that we found anything wonderful in it.  Perry said it must be some sort of homing instinct such as is possessed by certain breeds of earthly pigeons.  I didn’t know, of course, but it gave me an idea.

“Then Dian could have found her way directly to her own people?” I asked.

“Surely,” replied Ghak, “unless some mighty beast of prey killed her.”

I was for making the attempted escape at once, but both Perry and Ghak counseled waiting for some propitious accident which would insure us some small degree of success.  I didn’t see what accident could befall a whole community in a land of perpetual day-light where the inhabitants had no fixed habits of sleep.  Why, I am sure that some of the Mahars never sleep, while others may, at long intervals, crawl into the dark recesses beneath their dwellings and curl up in protracted slumber.  Perry says that if a Mahar stays awake for three years he will make up all his lost sleep in a long year’s snooze.  That may be all true, but I never saw but three of them asleep, and it was the sight of these three that gave me a suggestion for our means of escape.

I had been searching about far below the levels that we slaves were supposed to frequent—­possibly fifty feet beneath the main floor of the building—­among a network of corridors and apartments, when I came suddenly upon three Mahars curled up upon a bed of skins.  At first I thought they were dead, but later their regular breathing convinced me of my error.  Like a flash the thought came to me of the marvelous opportunity these sleeping reptiles offered as a means of eluding the watchfulness of our captors and the Sagoth guards.

Hastening back to Perry where he pored over a musty pile of, to me, meaningless hieroglyphics, I explained my plan to him.  To my surprise he was horrified.

“It would be murder, David,” he cried.

“Murder to kill a reptilian monster?” I asked in astonishment.

“Here they are not monsters, David,” he replied.  “Here they are the dominant race—­we are the ’monsters’—­the lower orders.  In Pellucidar evolution has progressed along different lines than upon the outer earth.  These terrible convulsions of nature time and time again wiped out the existing species—­but for this fact some monster of the Saurozoic epoch might rule today upon our own world.  We see here what might well have occurred in our own history had conditions been what they have been here.