Tunnels of Ice is the sixth scenario in The Sword of Frost, the eighth part of Heroes Chronicles. Tarnum's army followed Gelu's forces into the tunnels beneath a glacier, bringing the Nighon troops into an environment that felt more familiar to them. Zallisa, the leader of the medusas, discovered that Kija's barbarians had also reached the area, and could use the tunnels for ambushes. Trongar, Tarnum's minotaur king bodyguard, suggested that if they hit the barbarians hard enough, the tunnels wouldn't matter.