Eerie Sightings in the Mire...

[Captain Sureshot]

Originally Posted by nephalauxia

I wonder meself why Tia still has her powers though if the bretheren court imprisoned her in the first place and if she placed the relics then why did she also ask that we dig them up and if there is a way to release calypso a.k.a. tia from her human bonds.

Ahoy mate. Perhaps you are confusing Tia's asking ye to obtain certain relics to complete quests with the relics that Rott and his Casa de Muertos guild asked pirates to remove.

As far as powers: once bound in human form Calypso lost her powers. As Captain Whale said, Tia Dalma's powers come from being a practitioner of voodoo a.k.a. the Dark Arts.

Originally Posted by Jeanne Stormcutter

The game is based between movies 1 and 2, no Brethren Court there.

While the Brethren Court wasn't featured until POTC:AWE, chronologically the BC would have been established sometime prior to the game's time frame.