Gaul was divided into three parts. No, four parts - for one small village of indomitable Gauls still held out against the Roman invaders.
Quaestor Vexatius Sinusitus turns up in Gaul to investigate the creative accountancy of Governor Varius Flavus. When the quaestor is poisoned, he turns to Getafix the druid and the other Gauls for help.
Book 16 in the bestselling series.