Fun With Spam

I received recently the most extraordinarily random email ever the other day:

radioshow landslip exoteric‏

arms and legs.He clawed at his belt and came up with a dagger, so Brienne cut his hand off. That one was forIt is, Your Grace, Lady Merryweather agreed. The High Septon should have come to you. An

As far as Google is concerned, it's a collection of bits from George R. R. Martin's (extraordinary, highly-recommended, BTW) A Song of Ice and Fire series. But what does it mean?!? I'm perplexed and intrigued. Is it some inscrutable spam, or some more mysterious message sent to me by a stranger for a reason beyond mortal ken? I just don't think I'll ever know.