From the days when there were four young Rookou males and an equally "survival of the fittest" sister constantly jostling one another for dominance and domain, there is, about a mile from the house on the way to the Puisseat, a full sized Quidditch Pitch and stadium. It sat overgrown and unused for almost thirty years until, in her early teens, Caecey rediscovered it.
Various illusory charms of a permanent nature were placed upon it, to simulate the effect and atmosphere, even the presence, of a large, vocal crowd of spectators. As is traditional for Quidditch Pitches, it has a Muggle Repelling charm on it, and this ward has several nasty side effects for non-magical folk, courtesy of Misrada. There is also a permanent standard Disillusionment charm in place, causing it to blend in with the hills and valleys around.