Congrats! Unfortunately, they don't always lay in their first digging, but it seems most of the time they do. They'll usually go down about 8 to 10 inches, or usually to the bottom of the container they're in. I assume from the beardeds you know about the vermiculite and containers etc. so I won't go there. The recovery process of a veiled will be more critical to her since they're much more fragile of an animal that a dragon is. I would start the eggs in the mid 70's for the first month and a half or two. Then kick the temps up to the higher 70's or 80 until they hatch. You don't nessesarily need an incubator as long as your room temps are in the mid 70's. Adjusting the temps will just make it a little quicker. That will get the diapause as short as possible so they won't waste time there. Humidity in the container should basically be 100%, but if you have the vermiculite done right (7 to 10 ratio water to vermiculite by weight) then the humidity is sort of a given. Plan on a 5-7 month wait. I would check the eggs every 2 weeks and WEIGH the container each time, that way you know if you're losing water to evaporation. Even a sealed container will get lighter in 2 weeks. I end up adding about 2g of water to a sealed container every 2 weeks. I don't know about the darkness thing, but I've heard people say that eggs incubated in the light can cause more of the babies to have deformities (stub tails, general bad health, lower hatch rate, etc.). I've never tested that though. Keep them in the dark just to be safe. Good luck!
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Tyler Stewart
Las Vegas NV