where is isobel if she gets kidnapped

In Baldur’s Gate 3 , if Isobel gets kidnapped, she is taken to Moonrise Towers first, and later she is moved to the Mind Flayer Colony underneath Moonrise Towers.

What that means

• During the kidnapping scene, the game treats the abduction as successful once her health hits zero.

• You will not find her wandering around Moonrise Towers when you arrive there.

• Her location only becomes relevant later in Act 2, when Ketheric has already taken her below the towers.

In-game outcome

• If you allow the kidnapping, Last Light Inn loses its protection and the curse spreads.

• This also disrupts several companion quests.

• If you keep her safe, she appears later at Moonrise Towers instead.

Bottom line

So the answer is: she ends up in the Mind Flayer Colony under Moonrise Towers, not in the main tower itself.