Cataloging of a deceased adventurer’s belongings revealed a shoebox full of assorted old photos. A few held more than sentimental interest:
The Dark Manor The most dangerous photo of the lot. If stared at during night, the photo may open a portal to the pictured manor in a strange demi-realm shrouded in mist and populated by people who appeared to come from a gothic horror yarn. Anyone transported to the realm will be there for 24 hours on earth--though the exact time in the demi-realm is variable: anything from one night to a two weeks.
The Gold Women
A set of automata construct by a Staarkish thaumaturgist two centuries ago. They disappeared from a private collection in Lutha during the Great War. This photo has an address in Metropolis written on the back of it.
The Succubus Naughty postcard from roughly 40 years ago. It can be used to summon a succubus once per week if the incantation written on back is read and a few drops of the summoners blood (or other body fluid) is spilled into a circle draw on the floor.