Sorry for the delay, I was at an appointment and then work once I saw your replies.
From the looks of these eggs, I'd write them off as infertile. Substrate wise, looks like you're using perlite. If the eggs were possibly fertile, they may have desiccated due to lack of humidity.
I'm drawing this conclusion from your previous mentioning of the "substrate I have used isn't one to add water to." Though I don't use perlite, if I recall correctly, perlite should be "hydrated" at a 1:1 ratio by weight for incubation needs. Again, I've not used it, so I could be off here. That said, mold usually needs decent humidity levels to grow, but even then I've had eggs mold in low humidity situations of naïve incubating trials almost 20 years ago.
Sorry to rain on the parade like that. However, assuming your female has adequate age, length, and weight, there is a chance that she may double clutch if you keep her properly fed. Such 2nd clutches are usually smaller though and a number of breeders that attempt double clutching usually re-pair the snakes to ensure that clutch gets fertilized. If your female is not of adequate requirements she may still double clutch, so it's still wise to keep her well fed so she can reallocate resources lost from the 1st clutch.
Any other questions, feel free to toss them up here...