You need to know the genetics of the parents of both snakes to determine the percentage of babies that could be produced. Ghost is just one of the many morphs that have been bred in Hondurans. Not particularly rare and there are different quality ghosts. The more tipping you see (black tips on the white scales), the lower the quality. There is a book that I recommend that you purchase if you're really interested in learning more about Honduran Milk Snakes. It is called the The Collective Guide to Honduran milk snakes by James Tintle and Doug Mong https://www.amazon.com/dp/B00NYBJTVI...der_B00NYBJTVI
Excellent book! Good luck and enjoy your new snake.