This is how Descendants 3 ended:

https://youtu.be/eAsckx_TVB8

https://youtu.be/v2dggB0_gQE

https://youtu.be/rWVN4I2vsXw

Now let's look upon what happens after the core four runs into the isle. 

(note: this story is in the form of a drama or movie script and sometimes in form of a real story.)

So enjoy...............