Sarella Sand

Sarella Sand is a sand snake from Dorne, bastard daughter of Oberyn Martell. She is a minor character of the first and second seasons.

Biography
Sarella is Oberyn's fourth daughter. Her mother is the captain of the ''Feathered Kiss. ''She has a reputation for insatiable curiosity and is said to love Oldtown.

At some point, Sarella visited the abandoned holdfast Shandystone with her father, Prince Oberyn Martell, her sister, Tyene Sand, and her cousin, Princess Arianne Martell. Sarella turned over rocks, brushed sand off the mosaics, and wanted to know everything there was to know about the people who had lived there.

Sarella often uses the disguise as the novice Alleras whilst in King's Landing or Oltown to help her in studying for a maester's chain. The name Alleras is Sarella backwards, and Alleras (meaning "the Sphinx") is said to bear a resemblance to Oberyn Martell.

Season One
Sarella, disguised as Alleras, placed second in the Archy competition at the Tourney of King Robert's Nameday.

At the ball following the tourney, it was said that Alleras was dancing with Eyla Hardyng.

Season Two
In Season Two, Sarella travelled to House Lynette during the wedding of Ser Erik Etredes and Aranette Shreeve where she stayed with Eyla.

She then headed back to Oldtown with Neil Rivers, a young boy who the Etredes family wanted to train as a maester.