Tess is a female NPC that can be found in MidTown. she is an inventor and as such, she enjoys inventing stuff.
Tess has a collection task that a player can complete by giving her 3x Copper Bars.
When given 3x Copper Bars the player will receive a Dowsing Rod.
Tess can be found in West MidTown park, walking next to the calendar.
She can also be located on the west side of town at the base of the stairs from the Witches' Guild. Tess is near the trees along the edge of the hill.