After three dynamic episodes of "Game of Thrones" Season 6, there was bound to be a disappointment. Despite some great moments, "Book of the Stranger" spent its time setting up future storylines.

Warning: "Game of Thrones" Season 6 spoilers ahead.

An Actual Happy Moment 

There was a Stark family reunion in "Game of Thrones" Season 6, episode 4. The revived Jon Snow, complete with a haircut and new clothing,  is headed south. He hasn't decided what to do just yet, but he won't need to worry after the arrival of his sister, Sansa Stark. "Book of the Stranger" wasted no time with the arrival of Brienne of Tarth, Sansa Stark and Podrick Payne at Castle Black.

The embrace may have been the first truly joyous moment in a long time. It was great to see "Game of Thrones" slow down enough for quieter character moments between Jon and Sansa. The two reminisce about the simpler times at Winterfell, including the ways they may have treated one another. 

Sansa is committed to destroying the Boltons and taking back Winterfell. While that sounds like the right thing to do, Jon Snow does not want to be in another fight. Despite his hesitation, Sansa shows an incredible amount of strength as she remains unwavering in her pursuit of justice. It should come as no surprise that Jon Snow found the perfect motivation to reclaim Winterfell. He gets a letter similar to the "Bastard Letter" from "A Dance With Dragons" that led him to forsake his duties as Lord Commander of the Night's Watch.

The Wildlings will fight by his side, but he needs more allies. It's likely the quartet will head to the Vale after departing from Castle Black. Melissandre will likely be leaving with them as she now believes Jon Snow is Azhor Ahai , the prince who was promised. If Davos and Melissandre do go with Jon and Sansa, there will likely be plenty of tension with Brienne, who has not forgotten Melissandre killed Renly Baratheon.

Littlefinger’s Schemes

Littlefinger wastes little time in manipulating everyone around him. Lord Robyn Arryn is as bad with an arrow as he was with a sword. Littlefinger quickly uses his influence to threaten Lord Royce's life. Luckily, Robyn is too distracted to give much thought to killing Lord Royce. Littlefinger easily manipulates Robyn to get the Vale's army to attack Winterfell.

Death in Winterfell

Osha barely had enough time to be reintroduced in "Game of Thrones" Season 6 before she was killed by Ramsay Bolton. After some banter, Osha tries to distract Ramsay by seducing him. Unfortunately, Ramsay knows she  helped save Rickon and Bran, which leads to her death. In some ways, she  got off easy compared to other cruel acts performed by Ramsay.

Because of the way Ramsay psychologically abused Theon, the terrible acts against Sansa, killing his father and feeding his mother-in-law and her newborn baby to his hounds, there doesn't need to be another act of cruelty. Viewers already hate Ramsay, and Osha's death does not reveal anything about his character that viewers did not know from previous episodes. Instead of making Ramsay interesting, he is a caricature of a villain. Considering "Game of Thrones" has been able to make bad guys appear sympathetic or interesting, Ramsay is a disappointment.

Plotting on Different Continents

Diplomacy was on display in different ways in Meereen and King's Landing. Tyrion has invited the slave masters of Yunkai, Astapor and Essos to propose a truce. Tyrion offers a plan to slowly phase out slavery over seven years if the slave masters stop their support of the Sons of the Harpy. The peace proposal does not sit well with Grey Worm, which adds a layer of depth to his character.

In King's Landing, Margaery Tyrell is still being held in the cells. She hears an interesting story from the High Sparrow of his time as a cobbler. She also hears about the moment he hit rock bottom before finding the faith. The High Sparrow leads Margaery to Loras, who is in terrible shape. While it hurts Margaery to see her brother treated cruelly, she refuses to surrender to the High Sparrow.

The Queen of Thorns and Kevan Lannister are ready to walk out on Jaime and Cersei Lannister, but the talk of Margaery having to perform a  walk of atonement leads to an uneasy alliance among rivals. The Tyrell army will arrive in King's Landing demanding the return of Margaery and Loras. As for the High Sparrow, Jaime hopes he's arrested or killed.

A Dothraki Queen

The rescue mission seems to be wearing on Daario and Jorah as the two are no longer pretending to be friends. Daario notices Jorah's greyscale, which could prove problematic down the road as Jorah tries to regain the trust of Daenerys. The duo sneak into Vaes Dothrak, but are quickly discovered. It's a minor setback as they find Daenerys, who just left a meeting with widows of Vaes Dothrak. She has a better escape plan that will take place during the meeting of the khals.

The Dothraki khals do not accept Daenerys’ offer to rule the Dothraki, which leads to the burning of the temple of Vaes Dothrak. The khals are killed, with Daenerys emerging from the fire to rule over the Dothraki, who are pledging fealty to their new queen. Daenerys has another powerful army at her disposal ahead of her return to Meereen.

Dorne was missing for a third straight week. "Game of Thrones" Season 6, episode 4 did have another time to return to the Iron Isles. Theon Greyjoy has just arrived, but Yara still remembers the failed rescue at the Dreadfort. Theon apologizes, with his next move helping his sister to become queen.