text:  What a gradient through Avernus! What a curve will Hades take! When with joy the Shades discern us How Hell's terminus will shake! How the Pandemonium Junction With the Central will combine Rattling both without compunction Down the Tartarus incline! Phlegethon no more need fright us For we've bridged its fiery way; And the steamer on Cocytus Long ago has ceased to pay