Summary: After finishing the Duma Tower Mission, Celica's Party will be locked. So, if there are any events left to finish, you must complete them first before you proceed to this area. That being said, Duma's Tower is a very large map with loads of enemies standing before you, so be prepared. The mission ends after Celica talks to Jedah.
Opponents:
Exterior
Arcanist - Level 10
Arcanist - Level 7
Arcanist - Level 12
Gargoyle - Level 14
Gargoyle - Level 18
Bonewalker - Level 14
Revenant - Level 20
Dread Fighter - Level 5
Baron - Level 3
Gold Knight - Level 3
Sniper - Level 5
Cantor - Level 7
Sage - Level 3
Witch - Level 8
1st Floor
Dread Fighter - Level 1
Arcanist - Level 7
Fiend - Level 5
2nd Floor
Necrodragon - Level 15
Necrodragon - Level 8
Gargoyle - Level 15
Bow Knight - Level 8
3rd Floor
Bonewalker - Level 20
Necrodragon - Level 10
Bow Knight - Level 5
4th Floor
Bonewalker - Level 18
Arcanist - Level 15
Sniper - Level 5
Fiend - Level 5
Gargoyle - Level 15
Gold Knight - Level 3
Witch - Level 12
Dread Fighter - Level 5
Mogall - Level 5