"Please retrieve the spellbook that lies beyond. It will prove most valuable in all that lies ahead..."
—Garrick Ollivander asks Harry Potter to find the spellbook[src]

The Flipendo spellbook is a book that contained information on the Knockback Jinx. It also contained the instructions on how to perform the spell.

After Harry Potter was chosen by his wand, Garrick Ollivander asked the boy to find the Flipendo spellbook. After a short challenge, in the back shop, Harry found the book and learned the Knockback Jinx.[1]


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