Quests: 4 · Act: Act II · The Keepers
Unlocks: Second Keeper memory, Depulso puzzle rooms
1. Charles Rookwood's Trial
The second Keeper trial leans harder on spatial puzzles than the first, working portals with Wingardium Leviosa and Depulso to shift crates and pillars between rooms and reveal a path forward.
The trial ends in another Keeper memory, and the picture of what the four of them actually did starts to come together.
Rookwood's portrait only becomes available to talk to after Percival Rackham's Trial has run its course, which is what formally introduces him and sets up this second trial. The closing fight is against the same Pensieve Guardian boss you already beat in the first trial — if you cleared that one, this one holds no surprises.
2. Fire and Vice
Fire and Vice follows the Ashwinders to a vineyard and is one of the more memorable set-pieces in the middle of the campaign.
3. In the Shadow of the Mine
This is the Sebastian quest where his questline stops being a side story. It concerns his sister Anne and the lengths he is prepared to go to for her. The Unforgivable Curses arc is already running by this point rather than starting here: Crucio comes earlier, through the separate relationship quest "In the Shadow of the Study", and Imperio follows soon after in another one of its own. This quest is the emotional turn in Sebastian's story, not the one that hands you a curse.
Taking the curses you are offered is a real choice with story consequences and no mechanical penalty. Skipping them costs you nothing in power. Either way, decide deliberately rather than by clicking through the dialogue.
Sebastian's chain has a decision much later that is genuinely irreversible. If you care about how it lands, finish his quests attentively rather than rushing them between main-story beats.