"It would hardly benefit me to hold anything back unnecessarily, when I know what I'm asking. For you to find a needle in--God, not even a haystack. A needle in a tower full of other needles."

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I know what I'm asking. For you to find a needle in - God, not even a haystack. A needle in a tower of other needles." "Plunge your hand in a tower of needles," said Magnus, "and you are likely to cut yourself badly. Are you sure this is what you want?

— Cassandra Clare