A former prison inmate who did time with Martha Stewart reveals she saved the domestic diva from two attempts on her life – but now that she is in a life-or death battle against cancer, Martha has coldly turned her back.

In fact, when she approached Martha for help recently, all she received from her was an autographed photo!

In a blockbuster exclusive ENQUIRER interview, Lisa Guarino has divulged never-before-revealed secrets about Martha’s harrowing five-month stay at Alderson (W.Va.) Federal Prison Camp.

Lisa, who is suffering from breast cancer, is disappointed because she says Martha promised to find a top doctor to treat her. However, since Martha was released from prison, Lisa has not been able to reach the TV star – despite Martha’s claim that she stays in touch with her fellow inmates.

“Some of the women who became my friends while I was incarcerated have visited with me,” Martha said in a recent interview. “There are some very interesting women there of great value to society, and I keep in contact with them.”

Martha’s life was turned upside down when she reported to prison in 2004 on conspiracy and obstruction of justice convictions, stemming from a stock scandal. Mother-of-three Lisa was already serving time after being sentenced to  40 months for cocaine  possession.

The two became friendly, says Lisa, after she loaned  Martha some blush. Soon the two began working out nightly together at the  prison’s recreation center.

Lisa, who remains on probation and is battling cancer,  told The ENQUIRER: “Martha  and I would do crunches at night. I would count in English and Martha would count in French.”

One visit to the recreation center nearly ended in tragedy when strong-willed Martha shot her mouth off, revealed Lisa. “We were going to the usual room we used and the lights were off, which was odd. Then  I looked through the window and  I could make out some lesbians having sex.

“I warned Martha not to go in there, but she said it was our time to exercise, swung open the door, turned on the light and said, ‘Chop! Chop! Ladies.’

“There were about four lesbian couples in there, most of them semi-clothed and all of them had clearly been fooling around.  The women were more masculine looking than boxers, and as they came out of the room, one of them said she was going to kill Martha!

“Martha into the room began panicking when she realized they were serious.  She went white and began shaking. ‘Don’t let them hurt me!’ she said."

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