If the Relic of Ages is attached to the Town Hall:

After an hour of searching Arkham's Town Hall, you notice a faint blue glow emanating from underneath the door to the city planner's office. You break into the office without being noticed. The relic is lying on his desk, along with a map of the city that is covered in strange markings and iconography. Why is it here?

The investigator nearest to the Town Hall takes control of the Relic of Ages. Remove the remainder of the "a/b" act deck from the game. If another act card is in play, continue playing. Otherwise, proceed to (→R1).

Sure enough, the relic is tucked away in a corner of the shop's storage room, hidden from sight.

The investigator nearest to the Curiositie Shoppe takes control of the Relic of Ages. Remove the remainder of the "a/b" act deck from the game. If another act card is in play, continue playing. Otherwise, proceed to (→R1).