|Release date||24 July 2006 (Update)|
|Quest item?||Lunar Diplomacy|
|High Alch||0 coins|
|Low Alch||0 coins|
|Store price||Not sold|
|A vessel with water and Guam inside.|
A guam vial is made by using a guam on the special vial after water is poured into it. It is the first step of creating the Waking Sleep Potion, necessary for accessing the Dream World in the Lunar Diplomacy quest. The second step is to use the guam vial with a marrentill to produce a guam-marr vial.
An alternative process is to create a marr vial first, and then add a guam to produce a guam-marr vial.