The Sentinel in the Shadows

Azkaban, the wizard prison. Once, it was the glory of Albion where a just and fair couple ruled. It fell, and fate punished Merlin for his failure. Now a man has escaped, Sirius Black is on the loose and heading for Hogwarts. Merlin is hot on his trail with hope in his grasp, but hope is a fragile thing and Merlin's plan to resurrect his friends might shatter like his mind.