A 6-year-old cradled her 8-month-old sister, watching a computer on which music played.
Police found them home alone with two other siblings and no readily available food or heating in a dark, dirty house, lit only by the computer screen's glow.
Their mother, Maraea Manu Gage, had left them a bottle of milky tea, thick with sugar and a tea bag.
She had also left them with a toilet blocked with faeces, a bath full of dirty clothes and orders to not open the door to anyone.
Yesterday, Gage, 24, admitted four charges of ill treatment/neglect of a child under 18. The charges have a maximum jail term of 10 years.