[@Lugubrious]: Done with my entry for the contest, however I'm blatantly disregarding this:

[quote]but the traitor's motives should remain totally hidden to your character[/quote]
because a), I'd rather not win than to and hell will freeze over before I post a deus ex machined cliffhanger, and b) you kinda contradict yourself there:

[quote] the traitor explains their motive [/quote]
so I just picked one that suited my story better :confused