Only Cale and his friends can get the last seed, the one from the dragon tree, but they’re grounded and can’t leave their castles. Cale is in despair, but Ridel raises his spirits when he tells him that the seed of the dragon tree can only be removed by another dragon, with no human help. Cale decides to train Mondrago to get the seed. When Mondrago sets out on his mission, Cale decides that it’s about time to let all the residents of Samarado find out who is the evil person who’s destroying the forest of the talking trees. He sends a carrier pigeon to his friends and asks them to sneak out and meet up with him to set a trap. Will Mondrago come back with the seed? Will the kids get the townspeople to believe in them again? Will they manage to plant the six seeds so that new talking trees can grow again?