Dr Isla Fenwick has a life that most modern women of 1933 might envy - her career gives her status, her pedigree adds freedom and her oldest crush, Jovian Mandeville, has reappeared in her life with a marriage proposal. Her life is beginning to feel complete. However, she insists on keeping a private promise she made to her late mother to work at the coalface of medicine in India before committing to life as a dutiful wife.

With Jove's blessing, Isla sails to Calcutta to set up a new midwifery clinic. What she can't anticipate is how India will test everything she relies upon within, challenging her professionalism and her loyalties. But it is the fateful meeting of enigmatic Professor Saxon Vickery that will call into question what she trusts most about herself.

When the pair travel into the foothills of the Himalaya for a stay on a tea plantation outside Darjeeling, Isla must make the most important choice of her life. And at the roof of the world - where heaven and earth collide - a price will be exacted for glimpsing heaven.

From England's squally seaside town of Brighton to India's slums of Calcutta and breathtaking Himalayan mountains, this is a heartbreaking story about the pursuit of passion by the best-selling author of The Chocolate Tin.