The book Wolf Christmas is a children's book written by Daniel
Manus Pinkwater. It is available at Amazon as well as most online
book sellers and retail outlets.
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This description sounds like The Big Orange Splot by D. Manus
Pinkwater (AKA Daniel Pinkwater).
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Pogus Pen is a fictional pen name created by author Daniel Pinkwater. Daniel Pinkwater has written numerous children's books and works of young adult fiction under this pseudonym.
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According to his website, you do it through the forum: