Spoiler alert (for those who don't want to know about having multiple Assassins)
Mammawlin,
You hangning to that dagger or not being that far in the game had nothing to do with it. Here's how to have multiple assassins:
Solution 1 (requires to be "unpatch")
1- After you've acquired the Assassin Dagger, go to the Thief Guild.
2- Once in the Guild, go to the inventory of the caracter carrying the Assassin Dagger.
3- When the guild master is talking, move the dagger to another character.
4- Once your character becomes an Assassin, change to the character who now carries the Assassin dagger.
5- Repeat steps 2-5 until all you characters are Assassins.
Note: I never used this trick, so if I made a mistake, could someone please correct. Also, if you like that dagger, make sure to give it to another character on your last change.
Solution 2: (if you are patched or missed Scantril)
Contact Wyvern. She will then use her very special "talents" to make you an assassin (or pretty much anything else for that matter).
Note: once again, never use... Wyv, this one is now yours
[This message has been edited by Ryanamur (edited 05-14-2001).]