The ex-partner of a Finks bikie has told a judge she was too scared to leave a bedroom where she was huddled with four young boys, one of whom had been shot twice in the leg.
"I didn't know what I would find," said Amy Coller, after describing hearing windows shattering, the front door flying open, footsteps in the corridor and a gunshot.
Ms Coller was giving evidence in the South Australian District Court on Wednesday at the trial of Arron James Cluse, 23, who the Crown says had strong links to the Hells Angels.
He has pleaded not guilty to aggravated serious criminal trespass and two aggravated counts of endangering life in September 2011 at an Adelaide house.
Finks bikie Mark Sandery, who lived there with Ms Coller and his four sons, was not home on the night his 11-year-old son was shot.
Ms Coller, who split with Mr Sandery in November 2011, said when she first heard banging she thought "it was the kids mucking around" as they had not wanted to go to bed.
But she then had a "complete mental blank" when she heard glass shattering in another bedroom, then in hers, and the front door flew open.
"You could feel a cold draft coming through the hallway," she said.
She heard footsteps of two people before shots were fired amid "the commotion going on".
She then heard the 11-year-old calling out that he had been shot before his younger brother helped him hobble into the room and she tried to stop the bleeding.
Ms Coller had already wrapped another boy in a blanket and told the fourth boy to hide.
"I was too scared to leave the bedroom and walk down the hallway," she said.
She rang Mr Sandery who hurried home and took the boy to hospital.
Under cross-examination, she agreed that a few weeks before the shooting, Mr Sandery had come home angry, agitated and very energetic.
He asked her for his old Finks colours, a balaclava and a hammer and left in an angry state.
When he returned he said he had been inside the Hells Angels club room and chased two men around.
The trial continues before Judge Gordon Barrett.