Split Code by Dorothy Dunnett

To all appearances Joanna Emerson is a fully qualified, gold-medalled graduate of the world's finest college of Nursery Nurses.Engaged as a nanny to Benedict, newly born heir to a vast cosmetic fortune, she becomes caught up in a complex kidnap plot. But the enigmatic portrait painter, yachtsman and former spy, Johnson Johnson is never far away - and he knows the dangerous game she's playing. Before long, bullets are flying, and most of them in Joanna's direction.
Binding: Paperback / softback