Roaring above the leafy roof of the primeval forest, all that transpired upon the ground below was hidden from him and it was tantalizing to realize that he might have passed directly over the heads of the comrades he sought, yet there was no other way. Returning, he would either circle or hold an exaggerated zig-zag course, watching carefully for sign of a signal.
For almost two hours Jason Gridley held a straight course, passing over forest, plain and rolling, hilly country, but nowhere did he see any sign of those he sought. Already he had reached the limit of the distance he had planned upon coming when there loomed ahead of him in the distance a range of lofty mountains. These alone would have determined him to turn back, since his judgment told him that the lost members of the party, should they have chanced to come this far, would by now have realized that they were traveling in the wrong direction.
As he banked to turn he caught a glimpse out of the corner of an eye of something in the air above him and looking quickly back, Jason Gridley caught his breath in astonishment.
Hovering now, almost above him, was a gigantic creature, the enormous spread of whose wings almost equalled that of the plane he was piloting. The man had a single glimpse of tremendous jaws, armed with mighty teeth, in the very instant that he realized that this mighty anachronism was bent upon attacking him.
Gridley was flying at an altitude of about three thousand feet when the huge pteranodon launched itself straight at the ship. Jason sought to elude it by diving. There was a terrific crash, a roar, a splintering of wood and a grinding of metal as the pteranodon swooped down upon its prey and full into the propeller.
What happened then, happened so quickly that Jason Gridley could not have reconstructed the scene five seconds later.
The plane turned completely over and at the same instant Gridley jumped. He jerked the rip cord of his parachute. Something struck him on the head and he lost consciousness.
VI
A PHORORHACOS OF THE MIOCENE
"Where are your people?" Tar-gash asked again.