As usual this morning, I'm out walking. A sunny Sydney Autumn Sunday with a fresh breeze encouraging me to keep the pace up. Then I hear a familiar sound. The low rich roar of the twin Pratt & Whitney piston engines of a DC3. A resonance that instantly transports me to that little school at Gagl nestling in the shadow of Mount Wilhelm where, 40 years ago, late each Sunday afternoon, a weekend of isolation nearly over and a week of teaching ahead, I sit in the garden in my 'chair, lounge, aluminium, webbing, one', brown SP in hand, gazing across the Wahgi Valley to the misty Kubor range beyond. And, around 4.30, I hear the low roar and catch sight of the silver DC3 making its way from Goroka to Mount Hagen, representing the promise of town life and all-night parties and leave down south. Always an evocative sound, always an engaging sight. And this morning, as the DC3 passes overhead, sun glistening off its propellers, I'm 40 years younger and back at Gagl.