Aurora

She is the Summer Lady, daughter of Titania. First appearing in Summer Knight, she takes Elaine after she is "wounded" by Lloyd Slate, the Winter Knight. She took care of Elaine, and sat to talk to Harry, during which he noted her gentleness and kindness.

However, at a later time in the book, it is discovered that she is the one who kidnapped Lily, disguising her as a figure in the Summer Gardens. She steals the Unraveling Harry obtained from Mother Winter, and started the War at the Table. She planned to shift the power of the old Summer Knight Ronald Reuel, which had been transferred to Lily (being half-mortal at the time), to Winter by killing her on the Table. The power of the Summer Knight would be added to Winter, outbalancing the two Fae Courts. Harry killed her by unleashing pixies, led by Toot-Toot, armed with plastic-coated box-cutters. Her mother, Titania, carried her away from the Valley of the Table.