Also, there is one egg buried under the rest, and I'm concerned the baby won't be able to emerge... can they figure that out, or will I need to separate the eggs when they start to pip?
At about 2 to 3 days before they pip, the eggs naturally start letting go of each other. It will be easy for you to separate them and position them however you like (and get Mr. Moldy out). This is also part of the hatching timeline that can help you get a better feel for when to expect the first pip!
Paul