Miriam Spencer is an ordinary Slytherin girl, but she seems to have a knack for getting involved with dangerous things. Later, she and her friends gradually uncover the mystery of her origins and discover many clues connected to the Slytherin heir at the time and Voldemort... Along the way, she also befriends many "troublemaking pals" from Gryffindor. And so begins an adventure that's sometimes lighthearted and fun, sometimes moving enough to bring tears...
Then did Dumbledore want to win over the heroine to be an undercover agent for him?? I feel like the heroine is quite awesome.