#gargoyle egg

The longest known egg stay is around 4 years. its a ocean animal, but thats still six years short of a gargoyle hatchling

according to the wiki they stay in the mom long enough to forum a egg shell around the embryo. It doesn't say if theirs any development but that ten years isn't counted until the egg is laid. Meaning that the egg is fertilized by day 1, but it isn't forming a baby either until its is laid.

so if every gargoyle and human day of pregency is the equliment to 13 days for a gargoyle then. uh. i have to do a lot more math