The Black Widower

The Frog and Cheetah's publican, Ray Neilson, has branched into tourism with his 'Lord of the Ringz Tours'. But when Ray's wife is discovered dead under a giant foam spider things get 'mirky'. Especially when the cause of death is revealed to be from New Zealand's only native venomous spider - the Katipo. But if it was, how did one spider administer ten times the lethal dose?