And the Empire Council gathered, and we spent three entire days making plans and organising everything together. Agent Whisper reminded me that humans (lacking a more convenient way to store food for prolonged periods, such as honey) had a peculiar invention useful for our current purpose—ice cellars.
They weren't commonplace in the tropical climate, but rich people living closer to the mountains or the ocean (where Vardish culture was more prevalent) had them. These cellars were ordinary food cellars, but filled with packed snow or ice to store food in.
It was the perfect testing ground for cold resistance genes, and it gave me an idea to take some ice from the mountains, put it on a train, and carry it all over the Bee Empire for bees to test themselves on it.
Every bee born in a brood with a 'Chaotic Evolution I' gene and which didn't find in herself any other chaotically evolved gene needed to go through the chilling test.