Meet the Diamond Brothers, the world's worst private-detective agency in four hilarious and action-packed stories from the creator of the ''Alex Rider'' series. It's a dangerous life being the younger brother of the world's worst private detective - but Nick Diamond has survived...so far. However, these four mysteries are set to test his survival instincts to the full: a school reunion on a remote Scottish island, a dream holiday to Paris, an investigation into the whereabouts of a man in a blurry photo and the high profile visit of a world famous singer. What connects them? Murder! And if the Diamond Brothers don't play their cards right, they too could end up dead...These are four diamond stories in one collection, including ''The French Confection'', ''I Know What You Did Last Wednesday'', ''The Blurred Man'' and ''The Greek Who Stole Christmas''. The Diamond Brothers' exposure is at an all-time high with brand-new covers for the entire series. The 2007 World Book Day edition of ''I Know What You Did Last Wednesday'' shot to No. 1 in the Nielsen/Bookscan Children's Chart.