- Alleras Theory: Alleras is Sarella Sand In the prologue for A Feast for Crows, we meet Alleras, a Maester-in-training in Oldtown. Alleras is a young man who has earned one of his links for his Maester’s chain. Alleras is a mystery, which, naturally gives us an Alleras theory. But who is Alleras, “the Sphinx”? This is strange character, but there is plenty […]