Aidan & Aniera: Children of Aslan

Before the 100 years of winter in Narnia, Aslan had adopted two twins. A boy named Aidan and a girl named Aniera. Aslan loved his kids but then Jadis had come to take over Narnia. So Aslan had to make a decision. He sent his kids to live with some old friends in the human world. But Aslan changed the twins ages' from 17 to a new born. Before Aslan left his two kids, he gave Aniera a necklace and Aidan a pin.
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Aniera and Aidan have been living with their 'Aunt' for their whole lives. But that is what they thought. But since the war was going on they were sent to the professor for refuge. Then they meet the Pevensies. What will happen next? Will the prophecy finally come true? (Based on the movie The Chronicals of Narnia: The Lion, the Whitch, and the Wardrobe)