A dinosaur suddenly appeared at the top of the staircase Arthur was on, decked out in his official prefect hat (http://community.livejournal.com/hogwarts_hocus/1838832.html#cutid11). This wasn't one of the downright adorable turkey (http://upload.wikimedia.org/wikipedia/commons/f/fb/Vraptor-scale.svg)-sized velociraptors, but a genetically engineered monster (http://upload.wikimedia.org/wikipedia/commons/7/72/Utahraptor_size_estimate_chart.svg) courtesy of InGen, for whom Hogwarts house-elves were the equivalent of truly excellent cat toys. The raptor was preceded by a small herd of the shrieking and disapparating creatures, fleeing for their lives. With an unholy reptilian screech of glee the raptor came barreling down the staircase after them, heading straight for Arthur--whom he nimbly leapt over at the last second, clearing his head with room to spare--and continued his pursuit of the poor elves until the last one had disapparated away, thus ending the game.

The raptor came to a stop at the foot of the stairs, rocking to maintain his balance as the structure moved beneath him. He was accustomed to such occurrences and thought it was rather fun to ride them. He canted his head upward to peer at Arthur and gave an inquisitive sort of chirrup-growl, his tail lashing from side to side. Maybe this one liked to stair-play, too?