- “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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