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The Tunnel Challenge
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Fire-Setting Beneath City
You can heat this sandy soil with fire for as long as you want, but it won't do you any good!

Fire _+_ Soft sand __ Wrong
Learn more       Tunnel Score: 0

Heating soft sand won't help you build a tunnel -- it will just make you really, really hot and sweaty. fire-setting works much better in rock tunnels. Try this technique in a rock tunnel to find out why!


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