Holly Madison is taking aim at Hugh Hefner's wife.

Holly Madison & Kendra Wilkinson Are No Longer Friends, 'GND' Star Considered Suicide During Playboy Days

After dissing her fromer boyfriend numerous times in her recently-released book, Down The Rabbit Hole: Curious Adventures and Cautionary Tales of a Former Playboy Bunny, Madison has issued a statement to the Playboy mogul's 29-year-old wife.

“You are definitely getting in over your head," Madison said, according to a Life & Style report on Wednesday. "I thought being a live-in girlfriend would be a light, fun thing, but it was a lot heavier. ... Crystal’s in the same situation I was, which is really hard for someone in her 20s. It’s way more intense than you could imagine.”

It Looks Like Holly Madison Dissed Another Ex In Her New Book: Magician Criss Angel

In her book, Madison opened up about her "nightmare" life at the Playboy Mansion, claiming the pressures of her then-lifestyle made her suicidal.

"Maybe it was the pot and the alcohol, but drowning myself seemed like the logical way to escape the ridiculous life I was leading," she explained, according to E! News. "I just couldn't take my misery anymore. Of course my family would be devastated, but I rarely saw them enough for my absence to make a difference."

Madison also wondered if her then-boyfriend, Hefner, would notice her absence.

"Would he even miss me? No, I was certain I was just another warm body—as we all were. 'Just another blonde,' I could hear him say," she wrote.

To hear what Harris had to say about her marriage to Hefner, check out the video below.