★It is a logic practice manual for children written by Yang Zixi, the winner of the Bingxin Prize for New Writing in Children's Literature,
★Humorous and intelligent detective stories allow children to exercise their detective skills and logical thinking ability;
★Multi-faceted puzzle exercises allow children to open their minds and gain joy and confidence after conquering difficulties;
★Professional explanations of logical methods help children to activate their way of thinking and see the world from a wiser perspective.

The series includes 12 titles:
“Treasure of ‘Solomon’”
“The Legend of the Black Cat Chamber”
“The Secret of Monet's Garden”
“The Moon Building and the Nutcracker”
“The Nutcracker and the Music Box”
“The Labyrinth under the Rosebud Mountain”
“The Secret of Chiwu Island”
“Chiwu Island and the Conch Pearl”
“The Secret of the Old Mansion in Ancient Town”
“The Phantom in the Illusion Mansion”
“The Magic in the Illusion Mansion”
“Ghost Ship on the Black Wind Cliff”

Do Mental Exercise and Become a Logical King

Li Sidi’s fiend, Kiki, sends in a commission for the detective agency's help in investigating a bizarre photograph.

Kiki lives in a small fishing village. One night, she looks out the window at the Black Wind Cliff, and she finds that there is a huge ship on top of the neighboring sea cliff! She hurriedly snaps a photo, but after a while, the ghost ship disappears without a trace...

Allen Boe leads the group to the fishing village, and learns that the villagers believe that the Black Wind Cliff is unlucky and people cannot approach it. The little detectives investigate it and find that the Black Wind Cliff is actually hollow! There is an ancient sailing ship hidden in a deep cave! And there are two unreadable poems carved on the stone blocks at the entrance of the cave.

The group finds a hole under the cliff that has been deliberately hidden. Through this tunnel, they finally see the ancient ship inside the cliff!

In the helm building, the group finds a diagram with a cutaway view of this ship and three animals drawn on it. Allen Boe remembers that on some ancient Chinese boats, people would use the Chinese zodiac to name the various parts and utensils of the boat. So the group goes to look for the parts corresponding to the three animals. Finally, they find four verses, and a pattern of indentations symbolizing the sun, water waves, fish, and trees.

Using the patterns to order the four verses, the group concludes that it is a treasure poem which implies that at 2:00 p.m. on the day of the Spring Equinox, the ancient ship flies to the sky and that the treasure would be found by sweeping the dust under the tree in the courtyard which is shadowed by the ship!

Yang Zixi

Graduated from the Central Drama Academy in Peking, she has been awarded the Bingxin Children's Literature New Work Award, Qin Wenjun Children's Literature New Work Award, Children's Literature Mudi Award, the Jade Whale Award for the collection of original fantasy children's literature of the “Great White Whale”, the Shanghai Good Work Award for Children's Literature, and the Third Prize of the National Children's Literature Short Story Competition of “Zhouzhuang” Cup.
She has published long fairy tales such as “The Pianist by the Lake” and “No. 39 Star Street”. Her short stories and serialized works have been published in “Children's Literature”, “Children's Literature and Art”, “King of Stories”, and “Fairy Tale Kingdom”.

1. Ghost Ship on the Black Wind Cliff
2. Ancient Sailing Ship Hidden in Deep Pit
3. Turtle Rock after the Tide
4. Sun, Water, Fish and Trees
5. The Fish Leaps Out of the Sky
6. Designer of the Treasure Hunt