Hey! It's me the checklist guy again and I'm back for Act 2! Click here for the checklist for Act 1

Here are things to do (+ bits that in my opinion are interesting) before leaving Act 2. The point of no return for Act 2 is entering Shadowfell to retrieve the Nightsong then fightingKetheric.

As the game did not clearly indicate to me where Act 2 begins, I will assume entering the Shadow Cursed Lands marks the start of Act 2. Again, this is a hero or a good guy playstyle, so your mileage may vary which also means this list is not exhaustive.

Shadow Cursed Lands

Last Light Inn

Reithwin

Mason Guild

Tollhouse

House of Healing

The Waning Moon

Moonrise Tower

Grand Mausoleum

Gauntlet of Shar

(The following areas are past the point of no return)

Mind Flayer Colony

Misc