Shylo has always been the runt of the litter, the weakest and quietest of all of his family. His siblings spend their days making fun of him for not being like the rest of them. But when Shylo stumbles across a band of ratzis and overhears their evil plan to take a photo of the Queen in her nightie, it's up to this unlikely hero to travel to London and inform the Royal Rabbits of London about the diabolical plot! 

Little Shylo Tawny-Tail is proud to call himself one of the Royal Rabbits of London, a secret order who live under Buckingham Palace and fight evil across the world.But high up in one of London’s famous skyscrapers, the horrible Ratzis are plotting to cause chaos during a visit from the President of the United States. And when the Grand Burrow is attacked and Shylo is kidnapped, it looks as though they might just manage it! Can Shylo escape in time to save the day?....

The biggest, most beautiful diamond in the whole world has been stolen from Buckingham Palace!Nobody knows how a sneaky thief managed to take the Siberian Diamond from right under the Queen’s nose – but Shylo and the brave Royal Rabbits of London will do whatever it takes to solve the case and return the jewel to its rightful place.Then they discover that Russia's secret-agent minks are in London, could they have something to do with the theft? But nothing is quite what it seems, and the Royal Rabbits soon realise they are going to need a help from an old friend to solve this mystery...

As soon as Shylo arrives he finds something strange and dark going on. A mysterious bunny called Harlequin is on the farm, attracting many followers with his crazy singing and loopy dancing. But Harlequin is also digging for the Golden Carrot, which, says an ancient legend, will give him power over over all humans and animals. Harlequin believes it's buried somewhere on the farm. Then as more followers flock to the warren, Shylo wonders if the hunt for the Golden Carrot is a fun game or if Harlequin is plotting world domination…