Skip to product information
1 of 1

Bonnie MacBird

Three Locks

Three Locks

💎 Earn 40 Points (£0.40) on this item.

Low Stock: Only 2 copies remaining
Regular price £8.04 GBP
Regular price £10.99 GBP Sale price £8.04 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

YOU SAVE £2.95

  • Condition: Brand new
  • UK Delivery times: Usually arrives within 2 - 3 working days
  • UK Shipping: Fee starts at £2.39. Subject to product weight & dimension

Bulk ordering. Want 15 or more copies? Get a personalised quote and bigger discounts. Learn more about bulk orders.

  • More about Three Locks


In this new Sherlock Holmes adventure, a heatwave melts London, and Holmes and Watson are called to action to solve murders in Whitechapel, Cambridge, and Baker Street. They encounter prevaricating prestidigitators, philandering physicists, and murderous mentalists, unlocking secrets that may be best left undisclosed.

Format: Paperback / softback
Length: 432 pages
Publication date: 28 October 2021
Publisher: HarperCollins Publishers


In the heart of London, a scorching heatwave descends upon the city, turning the streets into a fiery inferno. As the temperature rises, Sherlock Holmes and his trusted companion, Dr. John Watson, are called into action to unravel a series of mysterious and deadly incidents. The first case takes them to Whitechapel, where a renowned Italian escape artist meets a tragic end on stage during a mesmerizing performance. Immolated in a gleaming copper cauldron of his wife's design, the artist's death sparks a series of investigations that lead Holmes and Watson to the bustling streets of Cambridge. There, they encounter a young woman's lifeless body, her long blonde hair entangled in the treacherous Jesus Lock on the River Cam. The authorities are baffled by her mysterious drowning, and Holmes and Watson are determined to uncover the truth behind this tragic incident.

As they delve deeper into the investigation, they discover a network of deception and intrigue that spans both cities. They encounter prevaricating prestidigitators, philandering physicists, and murderous mentalists, each with their own motives and secrets. The stakes become higher with each passing day, as the murders continue to occur, and the clues seem to lead nowhere. However, Holmes and Watson are not deterred. They use their unparalleled deductive skills and forensic expertise to piece together the puzzle, unraveling the threads that connect the two cases.

As they close in on the culprit, they discover that the murders are not just random acts of violence, but part of a larger plot that threatens the very foundations of society. The culprit is a mastermind, a criminal genius who has been planning his crimes for years, using the latest technology and scientific advancements to stay one step ahead of the law. Holmes and Watson must race against time to stop him before he can carry out his final act, which could have devastating consequences for the entire city.

In the end, Holmes and Watson emerge victorious, using their combined knowledge and expertise to bring the culprit to justice. The city breathes a sigh of relief, grateful for their tireless efforts and unwavering determination. The case may have been solved, but the memories of the murders and the secrets they uncovered will linger on, reminding everyone of the dangers that lurk in the shadows and the importance of never underestimating the power of intelligence and deduction.

Weight: 306g
Dimension: 129 x 198 x 30 (mm)
ISBN-13: 9780008380878

UK and International shipping information

UK Delivery and returns information:

  • Delivery within 2 - 3 days when ordering in the UK.
  • Shipping fee for UK customers from £2.39. Fully tracked shipping service available.
  • Returns policy: Return within 30 days of receipt for full refund.

International deliveries:

Shulph Ink now ships to Australia, Belgium, Canada, France, Germany, Ireland, Italy, India, Luxembourg Saudi Arabia, Singapore, Spain, Netherlands, New Zealand, United Arab Emirates, United States of America.

  • Delivery times: within 5 - 10 days for international orders.
  • Shipping fee: charges vary for overseas orders. Only tracked services are available for most international orders. Some countries have untracked shipping options.
  • Customs charges: If ordering to addresses outside the United Kingdom, you may or may not incur additional customs and duties fees during local delivery.
View full details