Slithorin had known that removing the egg from her care would botch things up.
Joey now had the DNA of a Dragon.Dragons are sometimes described in the dictionary as huge winged crocodiles.
The gender of a crocodile is determined by the temperature the egg is incubated at.
Warm temperatures produce more males.
Cool temperatures can produce a clutch of females.
In Slithorins body the warm would have induced Joey to develop as a seed provided.A male
The basement was cool
Joeys single egg started developing along a different path then Slithorin had intended.
One egg became two.Two became four.Four became eight.
By the time 5 years was up and the invasion was about to begin,Joeys egg held a bouncing baby girl dragon.
The end of life as humanity knew it could be laid squarely on
Slithorina's tiny little talons.
Joey was dead.
Long live Slithorina!