Elden Ring: How To Complete Edgar's Questline

gamerant.com:

There are a number of NPC questlines in Elden Ring whose directions and objectives are obscured by the purposefully ambiguous narrative style of the game. For example, a quest relatively early in the game tasks the player with giving a potion to another NPC, though they aren't told anything about their location, what the potion is, or what the alternatives are.

Elden Ring: What to Do After Beating Godrick the Grafted

Edgar, the Commander of Castle Morne in the Weeping Peninsula, is a character whose quest can be started and completed before beating a single Great Rune holder, if you know where to go. Of all the questlines in Elden Ring, though, this one is among the most heart-breaking.

Irina is a Maiden that players can find near the Bridge of Sacrifices in the Weeping Peninsula (south of Limgrave main). Irina sits near a totally ruined carriage and a small army of soldiers who likely died defending her.

Irina tells the Tarnished about the uprising at Castle Morne and why she left, leaving her father Edgar in command of a small contingent of soldiers as Morne's last line of defense against the Demi-Human invasion force. Irina asks the player to give her father a letter that confirms her survival after the near-total annihilation of the Castle and surrounding areas.

Edgar can be found on the very top of Castle Morne, sitting on a tower overlooking a small skirmish between Godrick Soldiers and Demi-Humans below. When you get to Castle Morne, head behind the Demi-Human bonfire to find a ladder leading upwards. Ascend the castle until you reach the very top – Edgar is found on a tower over the main entrance of the Castle.

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As Commander, he feels it is his