PORT ANGELES, Wash. -- Police on Friday released the contents of the chilling 911 call made by two little girls in hiding while her mother was being attacked.

In the most horrifying moment of her life, 9-year-old Daisy kept calm and begged police to help her mom.

On Sunday Daisy and her 11-year-old sister ran upstairs when their mother's ex-boyfriend kicked down the door and forced his way into their home with a gun.

Then a horrific scene ensued as Jeffrey Calvert, who had been stalking Kristin Stock for several weeks, attacked his ex. Calvert had tried relentlessly to reconnect with Stock after their break-up, police later said, in the way he had stalked a different woman years past.

The girls, who were hiding just a few feet away, called police. Amid the harrowing situation, Daisy somehow managed to control her fears and police exactly what was happening.

Operator: "911 emergency."

Daisy: "Somebody just broke into our house with a gun."

Operator: "They have a gun? Are they still in there?"

Daisy: "Yes, he's with my mom right now, downstairs. And we're upstairs. He just broke in."

Operator: "Do you know who he is?"

Daisy: "Yes, my mom has a restraining order against him. We need help right now. We're really scared."

Seconds later, Calvert shot and killed Stock before turning the gun on himself, according to police. But the girls didn't not know that at the time.

Daisy: "We're scared that he's going to come up and shoot us."

Then the phone is hung up.

What the girls heard next was not Calvert, but police officers coming up the stairs to rescue them. They were not injured.

"My understanding is the girl did an excellent job," said Chief Terry Gallagher.

Gallagher chose not to listen to the tapes, which are reportedly troublesome to even veteran officers. The incident was so traumatic that dispatchers and officers are taking advantage of counseling services to recover from what they heard and saw.

"If you put yourself in the mind of a dispatcher, she kept the 9-year-old talking, heard the gunshots, knew they were gunshots, I don't think you can listen to that tape and not be impacted by it." said Gallagher.

The girls are being taken care of by their grandfather.

"Everyone has seen people lose children and probably vicariously thought about what that would be like, and that's exactly what it's like," said Stock's father George Irvine.

Irvine said his granddaughters appear to be doing extremely well given the circumstances.

"As I understand it, grief goes through stages and I'm still in the sad stage. I think I'll develop a healthy anger at some point here," he said.

Stock's family plans to hold a public memorial on March 15.