Merry meet @pierre1 
Thank you for sharing about your oomancy experience! Siofra shared some great recourses for you, and unfortunately, oomancy isn’t something I specialize in either. But I know @SingingWitch has done this type of divination before, and she shared this Oomancy Guide that helped her interpret her results. Perhaps it will help you too! 
I don’t know if oomancy readings are at all similar to tasseography (tea leaf readings), but when reading tea leaves we look especially for symbols within the material. If you saw a rope or thread within the egg, it could be that these are the images you need to examine.
A rope or thread could be the “thread of fate”- a literal lifeline 
. It could also be the thin bond between people, and examining it could reveal the relationship strength or status between them. Or it could be leading you somewhere, if you follow it, you may then find the answer to your inquiry (or at least where you can learn more about the question you asked) 
Again, just suggestions here you might consider!
It is a pleasure to meet you, Pierre, and I hope you are able to find out more about your oomancy reading! 
