Do you mean big bro sligs? They're in there.
No picture's of Skilla, the slig queen, if that's what you mean, but they don't exist as far as anyone is concerned.
And I haven't played AE, but I would say bones (simular to the catacombs under paris, it's more storing the dead than purpesly making buildings out of them), and mud bricks (or other indiginious material).
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