Police are believed to be following a promising new lead in the case of the fire that almost destroyed a Perthville Heights celebrity mansion: a unnamed Mystery Shopper seen at the scene.

However, the Perthville Times has been told the Mystery Shopper has a watertight alibi, and her frequenting of the scene of the fire can be put down to her obsession with firemen.

“She just has a thing for firies,” a “friend” told our correspondent. “She thinks they’re hot as. She’s always hanging around fires, she has the Fire Department radio streaming into her apartment day and night.”

A colleague of the Mystery Shopper accosted by our reporter, agreed. “She wants to marry a fireman, everyone knows that. Then give up this shopping gig, although she does live the intrigue of going about incognito, but she wants to take it a step further and write mystery novels.”