Cyclopedia Universum

The Cyclopedia Universum was a pocket dimension used to store the accumulated knowledge of every Watcher throughout the history of the universe.^[1] Uatu granted the Fantastic Four access to the Cyclopedia Universum when they sought information regarding the death of the hero Gravity.^[2] Later, Reed Richards used the Ultimate Machine to access it, but downloading all the knowledge was slowly killing him, as the machine was designed for Watchers.^[3]

• The Cyclopedia Universum has the same purpose as the One, an enormous Watcher who serves as the repository for all Watcher knowledge. It is unknown how they relate, but it is worth mentioning that the Cyclopedia Universum was introduced after the One had been killed by the Celestials.^[4]