In what definitely will turn out to be the nastier divorce showbiz has ever witnessed, a friend of the former supermodel, now active campaigner for animal rights, states that Heather Mills is preparing to drop a 'bombshell' on her soon-to-be-ex husband, Sir Paul McCartney.

According to media reports, her attorney, Anthony Julius, has been busy in gathering damaging material against the former Beatle that clearly indicates that he is not, in real life, the person that he appears to be every time he sees a media representative.

The 'friend' told a British newspaper that divorce proceeding are not going 'smoothly', as McCartney's camp is claiming and that the situation is far from being resolved 'amicably'. Heather is said to be unsatisfied with the way she has been portrayed by the opposite party, which did its best of making her look like the bad guy in their failed relationship.

'Heather has made a number of very serious allegations against Paul which are set to come out in court. However, quite apart from that she feels that her character has been irrevocably damaged by a rash of stories which she is sure have been leaked out by Paul's side.', the source is quoted as saying, in the 'Daily Mail'.

Nevertheless, the former model will keep all that she knows for herself until the divorce settlement is pronounced. Only then, and only if she doesn't agree to the terms, will she come public with a series of secret 'information', meant to show the world Paul's real character and the way he treated her during their years of marriage.

'As the divorce settlement gets closer, she is fully planning to go public with some pretty serious claims about how Paul treated her during the marriage. There is some serious weight behind all of these allegations. Heather has made records of a catalog of incidents which have happened during the marriage. There's a lot to say on Heather's part but she is not prepared to go public with it at this stage. She has been told by Antony Julius to keep her head down and let things take their legal course.', the friend said.

Meanwhile, Heather is sitting quietly in her corner, gathering more evidence against McCartney and against the photographers that constantly harass her.