With a toothy snarl, she launched herself onto its back, and then stabbed down at its neck again and again, snarling and shrieking with every blow. The Grand Hall of Stars, in the Rookery of the Night Guard under Canterlot Mountain, was filled with a terrifying, otherworldly howl as the shadow-creature collapsed first to its knees, then onto its chest... and then finally, as the howl was reduced to echoes, it melted back into the sand.