2/16 Pursuing it I found upon one of the low seats a flat, clear crystal oval, remarkably like a lens. I took it and stepped up on the balcony. Standing on tiptoe I found I commanded from the bottom of a window slit a view of the bridge approach. Scanning it I could see no trace of the garrison there, nor of the green spear flashes. I placed the crystal to my eyes--and with a disconcerting abruptness the cavern mouth leaped before me, apparently not a hundred feet away; decidedly the crystal was a very excellent lens--but where were the guards? |