Ferrum's Secrets: Where Is Grandpa? is a Adventure, Casual, Indie PC game, developed by EJRGames, available on Steam and published by EJRGames.
Ferrum city was enveloped by a thick fog. Prominent citizens and scientists disappeared and among them well known inventor working on a number of inventions in the field of electricity. Shortly after his disappearance his granddaughter comes to his house.