Tenaged girl gone missing

It appears a girl named ruby Mallon has gone missing. the last place she has been seen was at her house. Her mother says that β€œshe just got up and left out the back door,I thought she was just going out on to the trampoline but when I checked on her she was gone.” She goes by the name Ruby Emma Mallon born 13th March 2010. She has dark brown hair , blue eyes. She was wear grey shorts and a white top.