Derlavai is the main continent of the unnamed planet featured in the Darkness series. It is the center of culture, education, and military power. It is located in the southern hemisphere. It is the site of the Derlavaian War. Derlavai is comparable to our world's Europe, as many of the cultures and political patterns are similar to those of the Old World. While Derlavai is the name of a specific continent it is also broadly used as the name for the world itself.

Features of Derlavai include its relatively small size, at least in terms of landmass compared to Earth, that the reader and the characters know about. Derlavai possesses on it a small numbers of countries, and relative uniformity in government, all possessing some variation of monarchism.

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