Shapelle Corby's family secrets

Sisters united: Mercedes and Schapelle

Schapelle Corby's sister Mercedes and her former best friend have had a very public falling out, with allegations about the drug history of Mercedes and other family members.

The twists and turns are worthy of a B-grade movie and it has left the jailed drug runner's supporters wondering whether anyone is left who is prepared to fight for her cause.

Jodie Power was once a Corby family confidant.

Last night, she took a pay cheque from Channel Seven and delivered a ratings bonanza, airing claims of drug use by Schapelle Corby's older sister Mercedes, who was once her best friend.