SKU: 88874106722

The sign of the five (Improbable Tales of Baskerville Hall, Book 2)

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Description

The sign of the five (Improbable Tales of Baskerville Hall, Book 2)In the second thrilling installment to the Improbable Tales of Baskerville Hall series, Arthur returns to the elusive Baskerville Hall and must solve the mystery behind a poisoned Sherlock Holmes, facing new threats, harrowing challenges, and ghastly ghouls along the way. It's time for a new adventure, are you ready? When Arthur Conan Doyle returns to Baskerville Hall, a secretive school for extraordinary students, he's excited to begin winter term

In the second thrilling installment to the Improbable Tales of Baskerville Hall series, Arthur returns to the elusive Baskerville Hall and must solve the mystery behind a poisoned Sherlock Holmes, facing new threats, harrowing challenges, and ghastly ghouls along the way. It's time for a new adventure, are you ready?

When Arthur Conan Doyle returns to Baskerville Hall, a secretive school for extraordinary students, he's excited to begin winter term with the friends he loves. However, soon after his arrival, a dangerous foe threatens his favorite professor, Sherlock Holmes, and all signs seem to point to a force that Arthur had hoped he'd seen the last of... the Green Knight. But Sherlock isn't the only target; others begin to fall prey as well. The question is: how are they all connected?

In the ultimate race against time, Arthur will have to dodge old enemies, befriend new faces, and brave encounters with spirits to solve the mystery before it's too late. But there are more puzzles to solve than one; it seems a new term at Baskerville Hall may not only test Arthur's wits... but his friendships too.

Praise for the Improbable Tales of Baskerville Hall:

"At the top of the most intriguing school list, with Hogwarts and the School for Good and Evil." -Kathryn Lasky, Newbery Honor author

"A tantalizing playground for inquisitive minds." --Publishers Weekly (starred review)

"A well-paced, exciting story in which stalwart heroes attempt to outwit inscrutable villains...Readers who love period mysteries and adventure stories are sure to enjoy." --ALA Booklist (starred review)

"A bold and thrilling reimagining of Arthur Conan Doyle's early life, filled with students and teachers who the world would later come to know so well, including Dr. Watson, James Moriarty, and, of course, Sherlock Holmes." --The Conan Doyle Estate

An Amazon Best Book of the Month!

A Junior Library Guild Gold Standard Selection!

Publishing in over 25 languages!


One poisoned professor. A mysterious returning villain. And a school where everyone has a secret.


  • A Thrilling Middle Grade Mystery: A young Arthur Conan Doyle must use all his wits to solve the case of his poisoned professor before the clock runs out.
  • A Sherlock Holmes Reimagining: See the world's greatest detective not as a master investigator, but as a beloved teacher in terrible danger.
  • Boarding School Adventure: Explore the corridors of Baskerville Hall, where ghostly ghouls and ancient secrets wait around every corner.
  • Found Family and Tested Friendships: With his friends at his side, Arthur must face down old enemies like the Green Knight, but the biggest threat might be to their own loyalty.
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SKU: 88874106722

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Julie
San Leandro, US
★★★★★ 5
Cute toy for my dog!
Color: Yellow - Fried Chicken Leg, Color: Yellow - Fried Chicken Leg
I have an old gentle dog who can’t chew on hard toys so he enjoys soft toys. This chicken drumstick is soft, squeaky, and cute!
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Reviewed in the United States on January 13, 2026
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Nick Wu
Belleville, US
★★★★★ 5
good
Color: Yellow - Fried Chicken Leg, Color: Yellow - Fried Chicken Leg
My dog is obsessed with this toy. He carries it around everywhere and plays with it every day. Good quality, cute design, and great value. Would buy again!
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Reviewed in the United States on June 9, 2026
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Chentao
Cuba, US
★★★★★ 5
doggy toy chicken leg
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I bought this chicken leg toy for my dog and it quickly became one of his favorites. The yellow top part has two different sections — the very top makes a crinkly sound like paper when he bites it, and the middle squeaks when he chews or presses on it, which really keeps him interested. The white bottom part is super soft and easy for me to hold, so it’s great for playing tug or just interacting with him. The size is perfect for small dogs, but it might feel a bit small for larger breeds — that said, the material quality is really nice. Overall, it feels well made, fun, and keeps my dog entertained without getting bored. Definitely a good buy.
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xmiki
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Fun, engaging, and cute toy for dogs!
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I got the fried fish toy for my dog. So far, he really enjoys the squeaking noise and comes running every time he hears it. The toy material is pretty thick and is holding up well during playtime. The size of this toy is perfect for my small dog but it might be a bit small for larger dogs. Overall it's a fun and super cute toy for my pets that's become a favorite!
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Reviewed in the United States on December 31, 2025
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