Secret Agent Jack Stalwart: Book 7: Puzzle of the Missing Panda: China

Name: Secret Agent Jack Stalwart: Book 7: Puzzle of the Missing Panda: China
Price: 6.99 USD
Availability: InStock
Rating: 4.5 (102 reviews)
Author: Hunt, Elizabeth Singer

by Hunt, Elizabeth Singer

Thriller Young Adult

4.5 (102)

4.5 stars from 102 reviews

105 pages~1.8 hr readPublished by Running Press Kids

$6.99At peak price

Last checked: Apr 19, 2026

Hidden GemHighly rated but flying under the radar. Fewer readers have found this one yet.

Price history: $0.50 – $6.99

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Price range: $0.50 – $6.99

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Perfect for you if...

You enjoy fast-paced adventure stories where the hero has to go undercover and stay one step ahead of danger.
You're curious about real places like China's wildlife reserves and want stories that weave in actual geography and animals.
You like protagonists who have to figure out who to trust when someone seems like an enemy but might become an ally.

Maybe not for you if...

You prefer mysteries where you can solve the puzzle yourself before the big reveal.
You want standalone stories and don't want to start in the middle of a series.
You're looking for stories with complex character development and moral ambiguity rather than clear heroes and villains.

About this book

In China's Wolong Nature Reserve, an endangered Giant Panda named Ling has gone missing. For his seventh mission, Jack is paired with Fong, a sixteen-year-old park assistant, to help locate the panda. Fong and a partner named Wong are members of the Scorpion Gang and have been posing as assistants to steal Ling and other rare creatures from the reserve for sale on the black market. Jack must infiltrate the gang's Beijing headquarters, which is staffed by menacing teenage thieves, to rescue Ling and the other animals before they disappear—and before Jack himself is lost.

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Price History

Kindle price over time. Green zones = periods when the book was free.

$0.50 – $6.99

Price has dropped 9 times over the last 10 months. Goes on sale roughly every 37 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently around #1,055K in the Kindle store — a niche title.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.5★ from 102 reviews

Review activity has been quiet recently. Rating has remained stable at 4.5 over the tracking period.

Sale Prediction

Actual Predicted

Based on past patterns, a price drop could happen soon. It typically goes on sale every 37 days and the last drop was 53 days ago. Typical discount: 93% off.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.