Snape's patronus was a doe,' said Harry, 'the same as my mother's because he loved her for nearly all of his life, from when they were children.
J. K. RowlingLily and James only made you Secret-Keeper because I suggested it,” Black hissed, so venomously that Pettigrew took a step backward. “I thought it was the perfect plan... a bluff... Voldemort would be sure to come after me, would never dream they’d use a weak, talentless thing like you... It must have been the finest moment of your miserable life, telling Voldemort you could hand him the Potters.
J. K. Rowling