Ну если кратко: в конце фильма из-за сильных подземных разрушений кластер стал нестабильным, и Стивену пришлось с ним зафьюзиться, кластер успокоился, но стал частью тела Стивена
Вот описание из блога:
Towards the end of the SU movie, both the chasms from the flood of biopoison and Spinel’s injector exploding cause deep underground damage, resulting in the cluster becoming unstable. Talking it down again fails, so Steven attempts to fuse with the cluster to help get it under control.
This works, but the cluster has no intention of letting him go, even after he eventually manages to unfuse. He’s unable to completely separate himself, resulting in gem fragments embedding in his body, and the cluster remaining connected to Steven. Now he has to face the future with more than just his own thoughts on his mind.
Во второй серии этого сезона было показано, что некоторые самоцветы продолжают заниматься своей старой деятельность, не думаю, что империя падёт от всеобщего безделья
Вот описание из блога:
Towards the end of the SU movie, both the chasms from the flood of biopoison and Spinel’s injector exploding cause deep underground damage, resulting in the cluster becoming unstable. Talking it down again fails, so Steven attempts to fuse with the cluster to help get it under control.
This works, but the cluster has no intention of letting him go, even after he eventually manages to unfuse. He’s unable to completely separate himself, resulting in gem fragments embedding in his body, and the cluster remaining connected to Steven. Now he has to face the future with more than just his own thoughts on his mind.