Cassandra Claire is a difficult subject when it comes to fanfiction. On one hand, she was responsible for The Very Secret Diaries, but on the other hand, she was responsible for the Draco Trilogy and wank. Lots of wank. She's also responsible for much of the current Draco Malfoy fanon. She actually had her very own urban fantasy series published, under the name Cassandra Clare. There is much contention about this and it is up for debate as to whether it deserved to be published.