I am very saddened to lose my cherished friend Adrian. We first met in 1989 in Glasgow, at WGNC, where our daughters, then aged 1+ played as toddlers. As a fledgling researcher in Obstetrics at the Queen Mother’s Hospital and MRC Blood pressure Unit at the Western Infirmary, I was very fortunate to have the support of Adrian in the analysis of the first paper in my MD thesis, on how the fetus adapts to a rapid needle-guided blood transfusion. We published our findings in the American Journal of Obstetrics & Gynecology – and almost to the month, 30 years later, we again published in the same Journal, this time to define the reference range to interpret circulating Placental Growth Factor levels during pregnancy, a powerful new biomarker of placental development and health. Along a journey of friendship spanning over 35 years, we stayed in touch through a cherished annual May Hillwalking week in various Scottish locations – a very special group of friends in their various stages of attempting to climb all 282 Munro’s. Adrian was always so impressive, striding almost effortlessly up the Hills, with wise conversation and his characteristic smile. One of my fondest memories of Adrian is climbing the 3 Munros in the Bounds of Knoydart. We all ascended the highest, Ladhar Bheinn in great weather, optimistic to conquer the other two at a future outing. As we turned to go down, Adrian announced that he intended to bash on and do all three – all by himself!  Needless to say, he completed all 3 as fresh as when he began that memorable day. Adrian was a gifted nature photographer, and we will all cherish his pictures of moments on Hillwalks, especially in the Fisherfields, and along our trek to Suilven. He would download his day’s pictures, and we’d gather with a pre-dinner beer around his Mac Laptop to be reminded of the elegance of Scotland’s nature. Despite his passion for Statistics, curiously Adrian did not count his Munro ascents, which were likely over 150. Perhaps this was because in his wisdom he lived in the moment of each day, enjoying the company of his family, and all of us all that have been so fortunate to call him our friend. Adrian inspired me in so many ways. He will be sorely missed by many, and always will be fondly remembered by his Hillwalking friends.