Twelve other unpublished novels, U-boat. Mistborn was my fourteenth book, Elantris my sixth. One, named Dragonsteel, was my seventh and a number of the people on my forums knew me when I started writing it. It was, in a way, the book that 'made me famous' among my group of friends. So, many of them are excited to hear that I'm reworking the setting and planning to do the book for the big leagues.
Dragonsteel Prime, the original, just isn't publishable as is. There were some great ideas, but I didn't have the skill at the time to make them work. So, I'm stealing some of the best ideas--and characters--and planning a new series around them. Hence Ookla calling me a cannibal, since I'm 'Cannibalizing' my old ideas to make new books.
The following is a complete Brandon Sanderson Bibliography, published and unpublished. Prime indicates an early attempt at a book which was later redone. (Note that when I redo a book like this, it isn't a 'rewrite.' Generally, it's me taking some elements from the setting and writing a whole new book in that setting, using old ideas and mixing them with fresh ones.) Published books are in bold.
1) White Sand Prime (My first book, took two + years to write. 1998)
2) Star's End (Science fiction. 1998)
3) Lord Mastrell (Sequel to White Sand Prime. 1999)
4) Knight Life (Fantasy comedy. 1999)
5) The Sixth Incarnation of Pandora (Science fiction. 1999)
6) Elantris (2000. Published by Tor: 2005)
7) Dragonsteel (2000)
8 ) White Sand (2001)
9) Mythwalker (Never finished. 2001)
10) Mistborn Prime (Stole the magic system and title for a later book. 2002)
11) Final Empire Prime (Stole a character, some setting elements, and title for a later book. 2002)
12) The Aether of Night (2002)
13) The Way of Kings (350,000 words. Took a long time. 2003)
14) Mistborn: The Final Empire (2004, Published by Tor 2006)
15) Mistborn: The Well of Ascension (2005. Contracted to Tor for 2006)
16) Alcatraz vs. The Evil Librarians (2005. Contracted to Scholastic for 2006)
17) Mistborn: The Hero of Ages (2006. Contracted to Tor for 2007)
18) Warbreaker (2006. Tentatively to be released by Tor for 2007)
19) Alcatraz vs. The Scrivener’s Bones (2006. Contracted by Scholastic for 2008)
20) Dragonsteel: The Liar of Partinel (Unfinished. 2007?)
21) Alcatraz vs. The Knights of Crystallia (Planned. 2007 Contracted by Scholastic for 2009)
22) Nightblood (Planned. 2008)
23) Dragonsteel: The Lightweaver of Rens (Planned. 2008)
24) Alcatraz vs. The Dark Talent (Planned. 2008. Contracted for Scholastic for 2010)
I'm not sure if I got all of those dates right, but the order is correct. I'm finished with all the books up to Dragonsteel, though Mistborn 3, Warbreaker, and Alcatraz 2 are all only in the third draft stage.