Kerguelen in the twenty-fourth century is no longer just a forgotten island. On this lonely archipelago in the southern Indian Ocean is an unknown and mysterious society. 13-Year-old Calvin accidentally came to this island and experienced a series of wonderful adventures. Behind the seemingly fascinating mysterious society, there is actually a secret that has been buried for nearly 400 years. The silver box inherited by Calvin becomes the key to unlocking all this. As the truth slowly emerges, Calvin's identity gradually becomes clear...
The sealed wizarding world, 7 Horcruxes - 7 heirs.
Oh, listen
That is the call of the heart of memory.