"Whenever you purchase a Crown Crate, you will always be awarded four items, with the chance to get a fifth item. In the event you receive a mount, pet, costume or personality that you already own from your Crown Crate, you'll be awarded a new resource - Crown Gems - in its place. You will also have the option to convert several items obtained from Crown Crates to Crown Gems any time you want. Items that can be manually converted include potions, poisons, riding lessons, experience scrolls, and other utility-type items. Any Crown Gems you earn can then be used to purchase the collectible items of your choosing from the current Crown Crate season.The crown crates will change quarterly, The first season is Storm Atronach, and features an array of electric-themed goods.
Each Crown Crate is associated with a special “Season" that will include uniquely themed items, and will be cycled quarterly. We're kicking off the first season of Crown Crates with the electrifying Storm Atronach theme."
For more information about Crown Crates, visit the official The Elder Scrolls Online website; http://www.elderscrollsonline.com/en-gb/news/post/2016/11/29/eso-welcomes-crown-crates
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