Lyra was in the hallway when the screaming started.  Instantly, her ears flattened and her fur stood on end.  Unbidden, her horn lit, ready to fight off whatever threat was present.  A loud crash echoed through the hallway, and a moment later she saw Nurse Redheart backpedaling out of a hospital room with a bloody muzzle, immediately followed by a lamp.  It disintegrated against the wall in a cloud of plaster dust, its light failing when the base shattered and the wires shorted together.