Upon his defeat, Krosis drops his mask - one of the eight mysterious dragon priest masks located throughout Skyrim. Collecting all eight masks is a requirement to restore the dragon priest shrine. The word wall guarded by Krosis contains all three words of the shout Throw Voice.
There are five active volcanoes in Hawaii. Kilauea is considered one of the worlds most frequently active volcanoes. If you just look at the number of Kilauea eruptions recorded since Europeans arrived, there have been 62 eruptions in 245 years, which comes out to 1 eruption every 3.95 years.
ALL islands of Hawaii are mountains- volcanoes. Each island was at least one volcano- some islands, like Maui had 2, the Big Island more.