“What's a Santa Claus?"
"Santa Claus is someone who drops presents down chimneys during Christmas time."
"I wonder if..."
"No! Chimneys, Percy! Not funnels!”
―Percy and Thomas talking about Santa Claus in the UK version

Thomas and Percy's Christmas Adventure, retitled Thomas and Percy's Mountain Adventure in North American releases, is the twenty-sixth and final episode of the third series.

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