This will be the final leg of the invasion. First things
first, you will have to help Zoltan fix the wall. Follow Zoltan to the gate.
When you reach it, climb up the ladder to find Iorveth. You will receive 300
experience points for meeting up with him. Iorveth will accompany you and
Zoltan to the main gain. Zoltan will successfully be able to close it, ensuring
that Henselt can’t make it through. With his attack cut off, Henselt will have
no choice but to surrender.
Philippa and Saskia will force Henselt to sign a treaty, and you will gain 600 experience points for beating the main part of the quest. (Spoiler) Henselt will agree to never enter the Pontar ever again. In addition to this term, he will also sign over control of Aedirn, meaning that he no longer has any right to anything in the area. Finally, Saskia will demand that Dethmold be executed before the treaty is completed. Philippa will agree, saying that they speak as one voice. Iorveth will find this a little suspicious, so he will enlist your help to investigate further into the matter.
Along with Iorveth, follow Philippa and Saskia back to Philippa’s home. Before you can really do any significant spying, Philippa and Saskia will teleport away. Now it is time for you to search the house for clues to the duo’s mysterious behavior. (End Spoiler.) First off, grab Philippa’s book, called Venoms and Poisons, from the table. Investigate the paper on the table to find a recipe for poison. Read the recipe to find that one of the ingredients is missing. This ingredient is the Rose of Remembrance. (Spoiler) Philippa will have used the Rose of Remembrance to cast a spell over Saskia, thus gaining control of the powerful dragon. (End Spoiler.) Meet up with the rest of your group in the courtyard outside of Philippa’s home. Speak with Dandelion and Zoltan to discuss the next leg of your quest. You will have to follow Philippa in order to see exactly what she has planned for Saskia. To this end, you will have to head to Loc Muinne. Say your goodbyes to Zoltan and Dandelion, then continue on with Iorveth to find the sorceress and begin Act 3. Congratulations! You are now in the final Act of the game on Iorveth’s side.