
In Hong Kong and Beijing, the stakes grow up. This INVEST pillar book teaches children the difference between investing and gambling, how diversification protects against risk, and why past performance never guarantees the future.

In Hong Kong, the rules change again. This time, Tom, Sophia, Lucas and Mai are handed ten thousand dollars in simulated capital and six real investment options — from a low-risk treasury note to a high-risk technology stock — and told they'll be judged not on how much they earn, but on how well they can explain their thinking.
What follows is the team's toughest test of judgement yet. A tempting stranger offers a guaranteed return that sounds too good to be true. A rival team seems to be following a strategy nobody can explain. And when a genuine market crash hits on the second-to-last day, watching every single holding fall at once, the four friends have to decide whether to panic, or to trust the reasoning that got them there in the first place.
A short trip across the border to Beijing turns up a second half of a symbol they'd already found in Hong Kong — deliberately left incomplete — and a discovery that the century-old ledger connects to real trading houses still standing today.

Student Workbook 3 uses the exact same $10,000 simulated portfolio and six investment options from the novel, including the real percentage falls each holding suffered on the book's dramatic crash day. Across ten units, students learn the genuine difference between investing and gambling, how diversification protects a portfolio when markets fall, how to spot the warning signs of a scam, and why a five-year growth chart never guarantees what happens next. The workbook closes with a full capstone challenge in which students build their own diversified portfolio, live through the same market crash the characters faced, and complete the same investor-matching exercise that closed the novel.
Workbook 3 is particularly well suited to a classroom unit on risk and decision-making, since every activity is built around real, checkable numbers from the story rather than abstract theory. The diversification exercise in particular gives students a genuine maths exercise disguised as a story problem.
The Asia Investment Challenge is a strong fit for older primary or early secondary classes ready to move beyond basic budgeting into genuine risk-based decision-making. Teachers have used the market-crash storyline as the centrepiece of a lesson on emotional decision-making under pressure. For bulk copies, classroom licensing, or curriculum guidance, get in touch.
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