I created a nuc about 3 weeks ago with 2 frames of brood and bees and a new queen. All seemed to be going well until this evening when I have found almost all of the bees dead on the floor of the nuc and only a handful and the queen still alive. What can I do to save this queen? I have one other colony but I'm not sure that they are strong enough to donate brood/bees at this point in the season without jeopardising their survival too! Any suggestions gratefully received.