My sister dreampt i was murdered!!?

She dreampt i was beheaded by a man who used to be obsessed with me and that he cut off my head but when she went to visit my empty apartment i was sending her signals through penguins and cats faces that appeared on the window!!The penguins showed her to a pool which uncovered clumps of my hair and some message that i bit the finger of the murderer which led her to a search for a fingerless man!! She's a bit physic at times and im wondering could this be a warning??