But she was told where it was and was given a head start.
The discovery came after Mika's husband Jon Cudworth told his uncle Neil Gilbert over the phone where the body was, a jury heard.
Mr Gilbert told the court that he had pleaded with his nephew in the conversation to tell him what was going on, but Cudworth, 35, replied 'I can't tell you'.
Mr Gilbert replied: 'Whatever you do in your life you must tell me. You are not doing yourself any favours - people will despise you for it.'
When he got an answer the family called Ms Austin in, giving her 15 minutes to locate the body before the police were called.
