The Day The Curse Was Cast

When the king was slayed, he secretly had a daughter before that whom he hid, when she found out her father had been slain she was infuriated, believing even the beasts had turned on him she cast a terrible ancient curse which swapped the emotion of everyone in the realm , our hero's reborn in the realm free from being guardians are also effected and the children of their different realm selves are brought to this realm to destroy the evil queen who is being led by the spirit of the king, but at the young ages of 8 how can they overcome this, will their powers shine through, or will the curse remain on the realm forevermore, things can go horribly wrong.