At last the ghouls brought their companion to a halt; and feeling above him, Carter realised that the great stone trap door was reached at last. To open so vast a thing completely was not to be thought of, but the ghouls hoped to get it up just enough to slip the gravestone under as a prop, and permit Carter to escape through the crack. They themselves planned to descend again and return through the city of the Gugs, since their elusiveness was great, and they did not know the way overland to spectral Sarkomand with its lion-guarded gate to the abyss.