The stories mainly tell that the boy Tim and the girl Flora enter different fantasy worlds, where they meet the dragon family, dryads and other animals who can communicate with people. The native creatures in each story have encountered some problems. Tim and Flora finally help them solve the problem by discovering a certain herbal medicine.
Like other children, Tim and Flora are full of curiosity about everything in the world. They bravely explore the new world and enthusiastically help strangers solve difficulties.
There are 3 titles in this series, focusing on different herbal medicine: mint, Siberian cocklebur & honeysuckle, hawthorn & dried tangerine peel. The titles are: Mr. Pharmacist's Powerful Drinks, Mr. Big Mouth's Magic Fruits, Mr. Duke's Mint Tea.
More than 1,000 titles of books by Zhejiang Publishing United Group have been traded with over 100 foreign publishing houses including Bertelsmann, Pearson, Hachette, Larousse, Gallimard, MacMillan, Random, DK, Shogakukan Inc., Kodansha Inc., Simon & Schuster and other world-famous university publishing houses such as Oxford, Cambridge, Harvard, Princeton, Stanford.