This scroll was one of their last resort. After being activated, the moon would become full instantly, triggering the lunar phase talent of the Moon Wolves, therefore significantly boosting the combat power of all werewolves.
Also, according to an uncertain piece of information they gathered, the Legacy Crystal of the City of Eternal Night would only appear during a full moon night.
Right now, even if they enter the City of Eternal Night immediately and hurry at full speed, they wouldn't reach the central area until after sundown. In other words, it wouldn't matter if they arrived early; they would still have to wait until nightfall to touch the Crystal.
However, having this scroll is a game-changer. They can operate on their own time. Whenever they reach the central area, they can activate the scroll on the spot. Even if it's not nighttime, they will be able to touch the legacy crystal immediately.
