After being the first one to be voted off, Justine was given a chance to stay in the island but on the other part of the island. It is what you called 'Isla Purgatoryo'.

In isla purgatoryo, voted off castaways will be given a chance to survive again and to fight for the other castaways that was voted off. Justine is the first one who will experience this.

Justine was accompanied by a dog.