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When I sleep I turn into a wolf. Bran turned his face away and looked back out into the night. Do wolves dreams?

George R. R. Martin (2011). “A Game of Thrones 4-Book Bundle: A Song of Ice and Fire Series: A Game of Thrones, A Clash of Kings, A Storm of Swords, and A Feast for Crows”, p.801, Bantam
When I sleep I turn into a wolf. Bran turned his face away and looked back out into the night. Do wolves dreams?