Recaps

Aermir conquered the Three Sisters and led the Mountain Clans in a devastating campaign against the Vale, using magic and secrecy to break its forces and ruin its harvest. As Jon Arryn sought peace and Olenna prepared to profit from the Vale’s grain shortage, Eddard confronted Aermir about his role in uniting the clans.

• Aermir rejected Eddard Stark’s plea for a peaceful settlement, then defeated Yohn Royce’s army on Longsister and took control of the island.
• Aermir captured Pebble after a siege of Stonehold, while Jon Arryn sent troops toward the Paps and Aermir secretly watched his council.
• Aermir united the Moon Brothers, Burned Men, and other Mountain Clans, then spent two years supplying and arming them for war against the Vale.
• Aermir led the clans’ invasion, where they defeated Vale forces, killed several commanders, and routed Yarick Waynwood’s cavalry after Aermir emerged from a hidden cave.
• Aermir’s forces struck House Lynderly’s flank and plundered or burned the Vale’s crops, while his agents and familiars prevented news from spreading.
• Jon Arryn’s lords debated peace as the Vale faced a ruined harvest, and Olenna Tyrell sent grain toward Gulltown while raising its price.
• Eddard confronted Aermir about uniting, arming, and training the Mountain Clans, and Aermir decided to explain his actions.

Aermir forced the Vale toward war while Rickon and his companions began learning magic, then crossed the Wall to confront the Night's King and barely survived. He awoke beneath the weirwood as Jon and his companions faced danger beyond the Wall, and rushed to reach them.

• Aermir convinced Eddard that the Night's King was real and explained that the North would need Vale manpower, while warning that the Vale could threaten the North after the war.
• Aermir confronted Jon Arryn at Newkeep, admitted he had armed the Mountain Clans, and demanded the Vale accept peace on his terms.
• After Grafton and Belmore insulted Aermir and attacked him, he crippled them, then staged an arrow attack to make peace impossible and drew Vale forces toward the coast.
• Rickon discovered how to absorb elemental mana, and Aermir took him to Skagos, where Rickon formed a Magic Heart and learned to cast fire spells.
• Dacey and Adru learned to sense mana and began forming their Magic Hearts, while Dacey and Aermir became lovers.
• Jon and Benjen found a massacre beyond the Wall, and Aermir traveled north after Skadi warned him that an Other was near Jon's party.
• Aermir performed a purification ritual and confronted the Night's King, but the Others overwhelmed his familiars and nearly killed him before Aermir escaped the mindscape trap.
• Aermir awoke beneath the weirwood after two days, while Jon's group fled through the frozen forest and he learned they were in danger and ran to reach them.