The Scroll of Gaseous Form is a Rare Level 3 Scroll found in Baldur's Gate 3 which allows you a free cast of the 
Gaseous Form Spell.
Scrolls are items that allow you a free cast of the Spell contained within. Most can also be used by Wizards to learn the Spell in question.
This consumes the Scroll and costs 50GP per Spell Level (unless the Wizard is the same Subclass as the Spell School, in which case, the cost is halved to 25GP per Spell Level).
Where to Get the Scroll of Gaseous Form in Baldur's Gate 3
The Scroll of Gaseous Form can be acquired through purchase from traders or by obtaining them from a variety of containers and enemies.
To find more information on the Scrolls available in Baldur's Gate 3, check out this Article!
