re: Crackpot ASOIAF Theories SPOILERS

Ok, as I mentioned earlier, after years of jumping back to certain parts of the older books for refreshers and to look at key scenes, I'm finally going back and just rereading the whole series. Just reread the Arya POV where she overhears Varys and Ilyrio conspiring in the dungeons. Everybody knows about them talking about the need for war, but that it's too soon and Varys needs to stall, yada, yada, yada. There are tons of theories around Varys and Ilyrio's schemes. BUT, Varys tells Ilyrio that he needs 50 more little birds, but he asks specifically for children who know their letters. At the end of ADwD, he has children with him with daggers. What's up with that?