Entering into the Rookery had so far proven pretty dangerous. But Treechopper was right: unless Glamerspear came up with a way to defeat armor, the Royal Engineer's Self-Propelled Air Defense vehicle 'Whirlwind' would never be able to beat the Valkyries, though it might beat every other flight in the Grand Mêlée. And winning the Grand Mêlée was worth taking some risks for.