"This is High Rock Keep you're in," Nightmare continued, ignoring how worried Rarity now seemed. "It's a big, magic proof fortress guarded by a well armed and experienced army. Equestria would need an army itself to get in here. And while Equestria does now have an army, it is laughably outmatched, and quite frankly is more concerned with protecting Equestria than saving three ponies and a baby dragon. Then there's the fact that Faust is here."