Arya Stark
Meet the Faceless Men and learn more about the House of Black and White featured in "Game of Thrones" Season 5, episode 2. Pictured: Maisie Williams as Arya Stark. HBO

In "Game of Thrones" Season 5, episode 2, "The House of Black and White," Arya Stark met up with an old friend. Arya has traveled across the Narrow Sea and arrived in Braavos without much of a plan. So, what can we expect from the House of Black and White, the return of Jaqen H'ghar and the Faceless Men?

Warning: Full "Game of Thrones" and "A Song of Ice and Fire" spoilers ahead.

The House of Black and White serves as the headquarters of the Faceless Men. While we have not seen any other members of the assassins guild, viewers are familiar with Jaqen from "Game of Thrones" Season 2. Much like how he changed his appearance as he said goodbye to Arya, he appeared in the guise of an elderly man in "Game of Thrones" Season 5, episode 2. Arya is turned away at first, but is later welcomed into the temple after Jaqen reveals himself at the end of the episode.

The Faceless Men worship the Many-Faced God, or the general representation of the god of death. Each culture has such a god -- like the Stranger for the Faith of the Seven -- and there is a shrine in the House of Black and White dedicated to all these manifestations of death. For the Faceless Men, death is a "gift" and they are hired to deliver mercy. The Faceless Men follow a strict code and it looks like we'll get more of Arya's training in episode 3, "High Sparrow."

In "A Feast for Crows," George R.R. Martin's fourth novel in his "A Song of Ice and Fire" series, Arya begins her training and gives up her identity. She becomes Cat of the Canals and has some trouble adjusting to her new role and letting go of her past. She becomes blind after drinking milk and has to regain her sight by learning what it means to be in the service of the Many-Faced God. During that time, Arya's warg abilities are explored and by the end of the fifth novel, "A Dance With Dragons," she regains her sight and is given her first assassination target. It looks like "Game of Thrones" will not be veering too far from Arya's storyline and could fit in the entire arc by the end of the season. How cool will it be to start "Game of Thrones" Season 6 with Arya the Assassin?