Hi Katt,
I'm not sure I clearly understand, either... but if you mean the catacombs under the temple (you went down with the Black Bishop?), then I hope you have a save handy from before you teleported out!
The Raanaar sword is not an issue.
The catacombs under the temple have several levels -- IIRC, there are 5. Did you explore them all? On the 5th level, touching the "catacombs armour" that is lying on the floor triggers some action that will take you forward to the end of the Act.
You might want to take a look at the
Official Beyond Divinity Strategy Guide, which can be downloaded from The Locus Inn.
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