But as always in my strange and roving existence, wonder soon drove out fear; for the luminous abyss and what it might contain presented a problem worthy of the greatest explorer. That a weird world of mystery lay far down that flight of peculiarly small steps I could not doubt, and I hoped to find there those human memorials which the painted corridor had failed to give. The frescoes had pictured unbelievable cities and valleys in this lower realm, and my fancy dwelt on the rich and colossal ruins that awaited me.