Claws of the Macra was a Decide Your Destiny book released in 2010.
Publisher's summary
Join the Doctor on his travels through time and space and influence the story with your decisions. Choose a direction and let the adventures begin...
Danger and adventure await you on a school trip to a gas refinery infested by giant alien crustaceans!
Only you can help the Doctor and Amy put a stop to the Macra's plans and save Earth!
These interactive stories continue online. With links to exclusive animated scenes and an exciting online game, there's a new adventure waiting for you with every read.
Plot
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Characters
References
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Notes
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