Battle of the Wizards of the North

From Author Wars - https://authorwars.com/books/battle-of-the-wizards-of-the-north-946025.html

Overview:

Title: Battle of the Wizards of the North
Author: unknown
Year: 2008
Type: Short Fiction

Editions/Publications:

Unknown. The Book of Wizards (Unknown, unknown, HarperCollins, ISBN-10: 9780688140052, $19.99, 145 pages, Hardcover, Anthology)
2012 . The Book of Wizards (2012, unknown, Two Lions, ISBN-10: 9781477860151, $3.99, pages, ebook, Anthology)