Hidden City: Object Seekers iOS

Mirages of an unknown city have been seen around the world. Is it real ? or a hoax? While your detective agency is busy gathering information, your friend is dragged into the phantom city by black smoke. The only one who can save him, you must now enter the strangest place you've ever been ? where magic, witchcraft and science work together, imagination turns real and weird creatures wander the streets. All around there are people and things gaining unusual abilities and a black smoke that seems to be alive, bringing with it enigmatic artifacts, secrets and dangers.