Publisher's Synopsis
When Mona Grey is ten, her father contracts a mysterious illness. His gradual withdrawal marks a similar change in Mona, who removes herself from anything - or anyone - that might bring her happiness. Numbers provide a kind of solace, and help her make sense of the world. As a maths teacher, Mona delights her pupils by encouraging them to find objects that take the form of numbers. But when seven-year-old Lisa appears with a zero that speaks of real turmoil, Mona realises she must find a way to reconnect with the world she has been afraid of for so long...
