The Truth by Terry Pratchett (First Edition) Harper Collins, 2000 Hardback in excellent dust jacket.
Stated First Edition, Review from Google:
There's been a murder. Allegedly.William de Worde is the Discworld's first investigative journalist. He didn't mean to be - it was just an accident.But, as William fills his pages with reports of local club meetings and pictures of humorously-shaped vegetables, dark forces high up in Ankh-Morpork's society are plotting to overthrow the city's ruler, Lord Vetinari. They've employed two Tarantino-esque thugs, Mr Tulip and Mr Pin. They mean business.Luckily, William has an informant. He can't be a talking dog because dogs can't talk. He's known only as...Deep Bone.