What could have Thorne Empire could have saw at Battle of Cassia Town?

What made one of the most powerful kingdoms in the War Sea if they are strong? to be afraid of something in the battle?
Was it when Octavious got a experimental curse and got revived, was the experimental curse that powerful to scare someone like Crown Prince of Thorns?

Probably not, since the Trello says that the curse landed on his corpse quite some time after his death.

We don’t know how long “quite some time” is though, that could only be like a day

quite some time easily could be
2 seconds

My (and some others’) guess is that it was Akursius Keep’s chaosplosion.

wasn’t that back when nero was still around? also why would they be scared it’s like miles away from them lmao

didnt akursius get chaosploded after like 20 years of existing

Julian finally found them