The group moves along stealthily, finding a shocking sight. The infected are building siege engines. Not only that, they are stockpiling the dead (they mysteriously disappear each night, so this is where they are ending up). The infected feed upon the piled up mass of bodies.
The focus of their siege building lies ahead, the Temple of Helia. Around it a yellow glow coming from the belltower, a massive bright, sunlike orb. When infected fall into it radius of light, they burst into flames and are destroyed.