May Stormbrewer is a woman found in a camp with Orla Fairweather, to the west of Lumbridge Crater and north-east of the pale wisp colony.
Prior to completing the Memorial to Guthix tutorial, up to 30 chronicle fragments can be given to her at a time in exchange for Divination experience. She can also draw these chronicle fragments from a player's bank, so they do not need to be in one's inventory.
Following the unearthing of the entrance to mysterious dungeon west of Nardah, May travelled there to study the divine portal preventing further access. She concluded that the portal is the same kind of energy as Divination wisps but at the same time it's different enough to require finding different approach in order to break it. She asked adventurers to come back to help break the portal after she figures out how to do it.