UPDATE(July 2012): This chapter has been completely revamped. This is the definitive polished version of it.
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NUMBER OF PAGES: 21.
This is the first Donatello centric chapter. It might not seem that way, but Donatello is one of the most important characters in MNTGaiden. All the main turtles are important, actually.
All official TMNT characters are (c) Mirage Studios, Viacom and Nickelodeon
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Next chapter (CHP 7): [link]