[The majority of my rulings are intended to make something the module is telling me to do, make sense in the context of the game world. The number of 'unblockable' or 'surprise' traps, and the flow of the game , made me drop initiative. The description of the constructs makes me want to ignore the mirror image altogether, I was using sight to justify it. But looking into it further I find nothing that supports me enough to draw out the debate, so ignore what I said about sight, but you still take the hit.  The first attack functions, as you said- activated when attacked, you were subjected to a surprise attack from behind which activated the mirror images, the second attack is subject to confusion. and my second attack failed anyway. Fireball targets all, 19 dmg reflex for half]