In the sixth book of this series, Sherlock Sam encounters his most important mystery yet! His classmate has gone missing at MacRitchie Reservoir, and no one can find him. Fearing the worst, Officer Siva refuses to let the Supper Club help, but there’s never been a mystery Sherlock, Watson and their friends could ignore!This book is also the first of The Fiendish Mastermind Trilogy! An exciting trilogy that will keep you at the edge of your seat.

Inspector Lestrade and Interpol have a mystery that only the Supper Club can unravel. Sherlock Sam, Watson and their friends have to travel to Tokyo, Japan, and eat their way through a baffling series of clues before they can solve the tasty crime! Will Sherlock Sam prevail? Or will everything get lost in translation, leaving our intrepid detectives cold and hungry?

-- 1st Prize winner of the Popular Readers' Choice Awards 2017 in the English (Children) Books Category --The Supper Club encounter strange and impossible phenomena near Dad’s workplace, and Sherlock Sam suspects that the weirdness is caused by alternate realities bleeding into his own. Together with Watson and the rest of the Supper Club, Sherlock Sam works to stop universes from colliding, lest they face a crisis of infinite Watsons spouting sarcasm everywher...

-- Winner of the Popular Reader’s Choice Awards 2025 - English (Children) Books Category --What if Sherlock Sam and the Supper Club found themselves in strange new worlds—again?!Join Sam, Jimmy and Ha Na as they explore a haunted Peranakan mansion. Cheer for El Taco Otaku as he grapples with gods to protect humanity. Follow Nazhar, Eliza, Jimmy and Watson as they attempt a heist in a travelling space library. Witness Wendy and Eliza hunt something mysteriou...

The adventures of Sherlock Sam continue! Together with his loyal sidekick robot Watson, Sherlock Sam is fast becoming Singapore’s Greatest Kid Detective!In Sherlock Sam and the Ghostly Moans in Fort Canning, mysterious sounds fill the air at one of Singapore’s most-loved historical attractions. Ghosts don’t exist, or do they? Will this mystery prove too difficult for Sherlock Sam to solve?

In a sudden turn of events, the Fiendish Mastermind calls the Supper Club to London to solve the mystery of a new criminal genius who is even more fiendish than he ever was! Sherlock Sam, Watson and the Supper Club have to race against the clock to discover the brains behind the crimes that have left the London police baffled. The thrills and restaurants of London will have to take a backseat as Sherlock Sam and gang come head-to-head with their most devious adversary yet!

Sherlock Sam and the Supper Club are off to Penang for a holiday! Of course, Sherlock Sam can’t go anywhere without bumping into a mystery. An antique tin robot vanishes from a toy museum without a trace! Did it walk off on its own? Was it teleported away? Will Singapore’s Greatest Kid Detective be able to resist all the local delicacies and focus on his most dangerous case yet?

When weird things happen while camping on Pulau Ubin, Sherlock Sam is convinced that aliens are to blame! Eager to investigate, Sherlock Sam and his not-so-eager sidekick robot Watson journey into the wilderness and discover a mystery that’s out of this world. Will these close encounters get the better of Singapore’s Greatest Kid Detective, or will he prove to be of a higher life form?

In the second half of the Digital Detectives Duology, Sherlock Sam, Watson and the Supper Club rush to Taipei to meet up with Eliza and investigate the disappearance of star video gamer Jill Su. How is Jill still streaming on SeeFood? Who is the mastermind pulling the strings behind the scenes? With the assistance of international Supper Club members, Sherlock, Watson and friends have to rush to solve the mystery before Jill Su runs out of extra lives.Includes BONUS Short Story: Sh...

-- 3rd Prize, Popular Readers' Choice Awards 2019 - English (Children) Category --In Sherlock Sam and the Mysterious Mastermind in Seoul, the Supper Club must chase their new adversary to South Korea where many cryptic conundrums await them! With Watson and Moran behaving strangely, will Sherlock and the Supper Club be able to puzzle their way through the various challenges set before them? Or will they be run ragged by their most rascally rival yet? Find out in th...

-- Winner of the 2021 Singapore Book Awards: Best Young Persons Title --The adventures of the Supper Club continue! In Sherlock Sam and the Seafaring Scourge on Sentosa, Sherlock and the Supper Club find themselves on a collision course with their most dangerous foe yet!A collector’s priceless artifacts have been stolen and he hires the Wonderful Watson Online Detective Agency to retrieve them. Sherlock and his friends find themselves following clues on the...

Get ready for Sherlock Sam’s latest adventure, this time, in an international school in Singapore!In Sherlock Sam and the Sinister Letters in Bras Basah, Sherlock Sam is all set to discover what an international school in Singapore is really like, but one of the students is receiving strange letters that are causing grave concern. Can Singapore’s Greatest Kid Detective use his super intelligence to help his new friend?