The Citadel is an archive of information for George R.R. Martin's A Song of Ice and Fire.
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Do we the readers, after having read aGoT and aCoK, have enough information to plausibly be able to reason out who was behind the assassination plot against Bran?
There's a couple of additional things to be revealed in SOS... but I think the answer could be worked out from the first two books alone, yes... though of course, =I've= known the truth all along, so in some ways it's hard for me to judge.
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