Moon Carving

An engraving of the moon, half in dull gray stone and the other half in jet (matching the design of the Llyrian Sect's sigil).
If it is struck with moonlight, the dull gray stone turns silver but it is otherwise unaffected. It's not completely clear what the carving does, but the suspicion is that it's a portal.
Identify:

Travelers from far and wide used this portal to travel to the Llyrian Moon Sanctuary, renowned for its alchemy prowess. This portal only receives incoming travelers; it does not have a matching placed endpoint, but connected portals are created through alchemical means where needed (single-use potions).

Item type

Magical