A 14-year-old boy who was left fighting for his life after being seriously burnt in a Mt Tarcoola house fire — which claimed the life of his younger brother — was discharged from Perth Children’s Hospital last week. On June 1, a horrific house fire broke out on Marinula Road, leaving three boys aged 12, 13 and 14 with life-threatening burns, requiring them to be airlifted to Perth by Royal Flying Doctor Service. Nulla Mongoo, 13, succumbed to his injuries on June 5, after he suffered burns to 90 per cent of his body. A Child and Adolescent Health Service spokesperson confirmed on Friday the Nulla’s older brother, Matt Mongoo, 14, was discharged from hospital last week. The 12-year-old boy remains in a stable condition in hospital. The update comes after the surviving boys were moved out of intensive care into a ward in stable conditions at Perth Children’s Hospital about a month ago. The fire gutted the house, with neighbours desperately rushing to help the injured boys before emergency services arrived. A fourth boy received burns to his hands and was treated at Geraldton Regional Hospital. A Department of Fire and Emergency Services spokesperson said the cause of the fire was deemed likely accidental.