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The Days of Fury are global disturbances that affect the planet Mobius periodically in history. They are described in the Echidna Tomes as "Natures way of adjusting to environmental changes it undergoes over a certain duration" according to Athair.


First Day of Fury

The first Day of Fury occurred approximately 11,900 years ago, several decades after the Xorda race attacked the planet via the Gene Bombs. The bombs, which were supposed to preserve the planet's environment as it was at the time of their use, instead triggered massive volcanic reactions on a global scale, which hurled billions of tons of dirt and ash into the planet's atmosphere, preventing most sunlight from reaching the planet. After thousands of years, the sun finally burned through the ash and dirt in the atmosphere, allowing for the emergence of the Mobosaurs. (StH: #148, TMS: #3)

Ancient Days of Fury

See also: Coming of the Chaos Emeralds

The arrival of the green Chaos Emeralds to Mobius could be considered the second Day of Fury. Mysteriously raining down on the planet, their arrival resulted in catastrophic changes to the weather. These changes caused the extinction of the Mobosaurs. Some time later, devastation wrought upon Mobius by the Forgotten War between the Order of Ixis and the Albion Knights of Aurora is believed to have brought about additional Days of Fury. (TMS: #3, CSE)

Another Day of Fury occurred roughly 1,200 years ago according to the Echidna Tomes. (KtE: #10)

Recent Day of Fury

The most recent Day of Fury occurred in 3236, causing severe weather changes all of Mobius. Sonic the Hedgehog and Miles "Tails" Prower were forced to land their plane Winged Victory because the stormy weather was so bad. Mobotropolis was rocked by a violent windstorm and snow rained down on Knothole. Even parts of Angel Island, such as Sandopolis and Echidnaopolis, were affected by the Day of Fury. The weather patterns there adjusted from blizzard snow storms to torrential rain fall. (KtE: #10)

Background Information

  • It is possible a rather massive Day of Fury occurred 3,237 years ago (when the year was "0" for the Mobian calendar) though this is not known for sure.