The gnomes' hidden marvel-city — the wonder of the world's invention, where arcane magic and impossible machinery are woven into daily life. It can only be reached by traveling downriver through Twinport and continuing by boat and then a gnomish train, and entry requires a wristband; a visitor's time in the city is strictly limited, and when it expires they are whisked back to the Trusty Trinket tavern in Twinport. The harbor announces arrivals with the self-raising Flag of Ships, and the Aisle of Theories runs through town, busy with boats carrying inventions off to be tested. The northwest of Tinkersville belongs to the gnomes who live there; the southeast is given over to hospitality for travelers. To the west the streets dissolve into the Feywild, where the city's most famous lost invention — the wish-granting Seventh Rock — vanished long ago. Its greatest living mind is the brilliant, scatterbrained arcane researcher Fudasfinspal ('Fin'), whose unassuming house conceals a sprawling subterranean Invention Zone.