As they arrive, the people of the waters send them a distress signal by freezing the Fyre River. The Fyrians are in grave danger. The likelihood of them having suffered an attack from the shadow knights is very high.
King Tanas and the mage Arzaro fear the worst. The black kingdom could have potentially succeeded in stealing the water sapphire from the crystal castle.
However, before starting a war, the king prefers to validate this assumption. He therefore sends the youngsters to the Fyrian kingdom to find out the truth.
Welcomed by the mermaids, Zane, Aléna, Wade and Walker are introduced to the Fyrian prince. He tells them they will have to travel back in time to prevent the invasion of Aden’s troops, which has already occurred. Backtracking too far, the young people will discover secrets from the past.
Will they succeed in changing the course of events and prevent the attack on the water kingdom? Will they safeguard the sapphire of time?