Attack!!!
Security at the MoMA's front doors heard the buzzing first, then shouts from down the street. The lights over the pavement blacked out in what appeared to be an angry droning dark mist, but when they got a closer look they realized it was bees. Thousands of golf-ball sized mutant bees swarmed from the sky, fuzzy and day-glo purple, stingers inches long and sharp. People shrieked, running down the street to escape the throng, taking refuge in whatever open buildings they could find. S.H.I.E.L.D.'s evacuation zone and barrier had done nothing against hordes of insectoids already spreading over the city, out of the barrier, into the world. And into buildings unfortunate enough to have open windows or doors held ajar just a moment too long. Someone had opened a few windows on the top floor of the MoMA to let in cool night air into the stuffy room full of people. It gave the wormhole bees an opening and they took it, hundreds of them flying in to sting surprised party guests, getting tangled in people's hair and gowns, buzzing rage overheard. The immediate reaction was panic; normal bees were bad enough, but these were alien and no one knew what would happen from a sting. People dove under tables for cover, stampeded and shoved towards the exits, creating a frenzied bottleneck that effectively kept them trapped inside. Apparently, the night would not be going smoothly after all.