The Snow Line (Scribe UK), the latest novel by Guyana-born, UK-based Tessa McWatt (a past winner of the OCM Bocas Prize for non-fiction), meditates on difference and affinity, love and ageing, through the story of four strangers from various countries and backgrounds who meet at a wedding in India. Unlikely friendships ensue, and soon the four embark on a journey into the Himalayas — and up to the snow line of the title — where, in the rarified air, questions and secrets rise to the surface.