When the vertically-challenged Johnny Naples entrusts Tim Diamond with a package worth over three million pounds, he's making a big mistake. Tim Diamond is the worst detective in the world. Next day, Johnny's dead, Tim feels the heat, and his smart younger brother, Nick, gets the package and every crook in town on his back! When a dwarf comes into the office and leaves a package, Tim Diamond, the world's worst private-detective, is faced with his toughest case yet. The office is ransacked and the package is found to contain simply a box of Maltesers. Who was the dwarf … and why was he murdered shortly after his visit?

Framed for a jewel robbery, quick-thinking thirteen-year-old Nick Diamond finds himself sharing a prison cell with Johnny Powers, juvenile delinquent and Public Enemy Number One. Suddenly, Nick is Public Enemy Number Two! His only chance at breaking out of jail is his older—and much dimmer—brother Tim. He's possibly the world's worst private detective, but Nick has no choice. Can Nick break out of jail, defeat Ma Powers and her gang, recover a stolen vase from an underwater hideout, and defuse a ticking time-bomb all while keeping his older brother from wrecking everything? The heat is on in this explosive Diamond Brother mystery!

From the # 1 New York Times bestselling author of the Alex Rider series. It looks like Tim, the world’s worst private detective, and Nick, his brainy kid brother, are in trouble again. They’re dead broke. But money is the least of their worries when a mysterious man bursts into their office and offers Tim a wad of cash for his coat. Minutes later, the stranger is dead and Nick and Tim are left to puzzle over his final words. What could he have meant by "suff bee suff-iss"? Or was it "south by southeast"? Neither one seems to make much sense, but the Diamond brothers will have to figure it out, and fast! Whoever killed the stranger is now after Nick and Tim!

The man in the photo is so blurry, it's impossible to make out what he really looks like. And that's before he was run over by a steamroller!

The Diamond Brothers – the world's worst detectives – are embroiled in a Parisian mystery! The hard-up Diamond Brothers win a weekend for two in Paris, but as soon as they arrive, they find themselves in danger. There’s a nasty smell in the air and it’s not the cheese. If Nick and Tim aren’t careful, their dream holiday could end up being a nightmare from which they’ll never wake…

When the Diamond Brothers receive an invitation to a school reunion on a remote Scottish island, things seem to be looking up. But Nick's got a bad feeling, and it's not indigestion. And when he meets their fellow guests, the feeling only gets worse - especially when they start dying in ever more bizarre ways!

It's Christmastime, and Tim and Nick are flat broke. Luckily for them, a famous Greek pop singer has been getting death threats—and the Diamond brothers are hired to solve the mystery, in this latest novel by the New York Times-bestselling author of the Alex Rider series.

Tim Diamond—the world’s worst private detective—takes on his most dangerous case yet, and it’s going to be up to his brother to keep him out of trouble. A short story from Guys Read: Thriller, edited by Jon Scieszka. Available online here.

A book in the Diamond Brothers series. A hilarious new story about the world’s worst detectives, by the bestselling author of the Alex Rider series, Anthony Horowitz. Private investigators Tim and Nick Diamond haven’t had a case for three months and are down to their last cornflake. So when a glamorous woman comes into their office offering them a pile of cash to find her missing father, they think Christmas has come – only it turns out they are the turkeys! Before they know it, they are caught up in a case involving bike-riding hitmen, superhackers and a sinister far right organization, the White Crusaders. The Diamond Brothers are in the soup and in it over their heads. With thrills and spills, and jokes on every page, this new Diamond Brothers novel will have young readers howling with laughter.

It's a dangerous life being the younger brother of the world's worst private detective - but Nick Diamond has survived - so far. But these three mysteries are set to test his survival instincts to the full!