There is way to much time travel going on and makes the book hard to follow
Answer:
Moneylender
Explanation:
A synonym for usurer is "Moneylender", for the person <em>loans</em> money (lends) to others, with high percentage of net gain on return (interest).
In the story "The Devil and Tom Walker", Mr.Walker becomes a usurer, and charges high interest rate on others without a care to their financial position.
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It should be the kangaroos’ habitat