Meanwhile at the top of the spire, a savage battle occurred with Tyrus and his minions. Just as the dragonborn barbarian seemed defeated, Glarthir stepped through a hidden door, his mind broken and reclaimed by Tiamat. He swiftly wrenched his knife into the imprisoned Annabelle von Vesthazen, completing the ritual and opening a spiraling vortex into hell. The heroes had little hope as the infernal portal pulled them one by one into its jaws. Marlow managed to resist the pull long enough to watch Glarthir perish as the tower split in two, crashing into the frozen tundra hundreds of feet below.