The Empty Breath Potion Flask is carried by Ekim Cyre in Abazigal's Lair Entrance Hall. If taken to Pool Home breath under water, it can be upgraded to the Breath Potion, which allows the party to travel to the other areas of Abazigal's Lair.
Description[]
| “ | This flask will hold the breath potion, if you can find a font where it can be refilled. The breath potion will allow you to swim through the longer underwater tunnels beneath the enclave. | ” |