Grandparents are boring right? Wrong! As Ben is about to find out. Packed off to his Nan and Grandad's for the summer holidays, with his older brother Kieran, Ben is on the brink of losing his brain to boredom. That is until he sees Mrs Gillespie, Nans rotten old neighbour, acting very suspiciously. It seems that the old people of Honeypot Grove are keeping a very big secret and Ben is determined to get to the bottom of it. Ben soon finds himself uncovering government secrets, finding underground surveillance centres, and confronting Lycra clad assailants. And he's dragging his big brother along for the ride. But when the boys get into some serious trouble at the hands of a criminal Boss, can they really count on their Nan and Grandad to save them? Packed full of adventure and a few laughs along the way Ninja Nan and Sidekick Grandad will leave you wondering if all old folk are what they appear to be? Ninja Nan and Sidekick Grandad is aimed at the age 7+ reader.