Fire and Blood

“

Alphinaud is considering how best to proceed with the hunt for the Mongrel.

— In-game description

Steps

In the midst of considering your next course of action, Alphinaud suddenly realizes that Tataru is nowhere to be seen. Fearing that she may have run afoul of the revolutionaries, he rushes towards the doors leading to the Brume, motioning for you to follow.

You cast about for Tataru, but find no sign of her. Head to another vantage point and continue your search.

You spot Tataru being pursued by two men, and immediately give chase. Soon after, the strangers corner the trembling girl and seem set to do something unspeakable when Alphinaud accosts them from afar. His attempts to defuse the situation only serve to rile the men further, however, and violence appears inevitable -- until a raven-haired woman with ruby eyes appears, and commands Tataru's tormentors to desist. It would seem her name is Hilda. In the taut silence which follows, she regards you with interest, waiting for you to state your reason for coming.

Before you can speak, Hilda suggests you accompany her to the Forgotten Knight, where you may discuss matters in private. Follow her to the tavern up above and continue your conversation there.

At Hilda's request, Gibrillont orders his staff to clear the Forgotten Knight and grant you privacy, after which you explain your reasons for coming in full. As Alphinaud attempts to win the revolutionaries' cooperation -- seemingly in vain -- Ser Charibert, a knight of the Heavens' Ward, strides into the tavern, accusing you and the others of plotting insurrection. With no other options left to you, you accept his offer to step outside and face him in battle.
Joined by Lord Haurchefant and Lucia, you manage to overwhelm Ser Charibert, who withdraws. The joy of victory swiftly dissipates, however, when you learn that Ser Aymeric has been imprisoned, and the Heavens' Ward placed in command of the Temple Knights. Recognizing that the situation has come to a head, Hilda agrees to assist with the rescue mission.

Recognizing your curiosity, Hilda explains that she took to calling herself “the Mongrel” out of a newfound pride for her mixed heritage, in spite of the discrimination she and others like her suffer. In the end, she declares, her followers have come to believe that the differences between lowborn and highborn are far greater than those between pureblood and mongrel. Thus united in purpose and pledged to Ser Aymeric's cause, they hope to bring about long overdue and lasting change.

Upon speaking with Hilda at the Forgotten Knight, you will enter a duty where you will fight against Ser Charibert and his soldiers.

As an arcanist, Alphinaud can heal you greatly during the fight, but stay cautious of your HP as the fight can become difficult. Hilda, the Mongrel, will contribute DPS as a machinist. As the duty progresses, you will also gain the aid of Haurchefant.
Your first target should be the healer, the Ishgardian Chirurgeon. Eliminate him quickly, as his healing can restore more than half of enemies' HP. Target the other soldiers only after the healer is down, and worry about Ser Charibert last. Repeat this process when additional enemies join the battle.
Stay cautious of Ser Charibert the Stern's black mage AoE attack Flare, which deals damage and has the unique property of leaving a lasting field of fire in the casted area. Touching the burning field will cause a 10 second DoT on you and your NPC allies, so spread out as much as you can as he will cast it multiple times.
As Ser Charibert's HP is reduced, he will use an new attack: he will summon an untargetable Ball of Fire which will slowly follow you around the arena. Avoid it by running away until it dissapears; getting hit will bind you and deal damage.