Will Wizard 3 Stone Heart help the mirror master?

If it's the end, if you don't help the mirror master, you can get Ogilvy's sword if you save him, and carabela will give it to you.

The world view set by the game:

The game inherits the world view of the series of novels of Devil Hunter. A disaster happened before the story of the novel 1500. The worlds of different dimensions collide, and the worlds are directly connected and penetrate each other. This disaster is called "celestial convergence", which trapped many creatures from different worlds in this world.

For example, ghouls, blood thorns and high-level vampires are all remnants left by the intersection of celestial spheres. These creatures, with their own unique ecology, are remnants of the past. According to fairy tales, people came to this world because their previous world was destroyed.

Game story:

After Geralt regained his memory, he began to look around for traces of Ye Naifa. Finally, Yenefa contacted Geralt, whom he hadn't seen for many years, and asked Geralt to meet him in Willoughby village. However, when Geralt arrived at the designated place, the whole village had been razed to the ground by the army, and Yenifa had disappeared. On the way, Geralt met Vesemir, and with his help, he tracked the trail of Ye Naifa together. On the way, Geralt dreamed of what happened to Kyle Mohan. This dream warned Geralt that his adopted daughter Healy had some problems.