Vanishing at The Velmont

Last night, Cornelius Vanderbilt was supposed to receive an award at the Velmont Hotel’s Annual Inventors Convention, but he seems to have vanished. He said if something happened to him, he would send the family heirloom as proof he was okay. With no sign of him or the heirloom, you and your team have checked into the same room he was staying in. Can you find the family heirloom and discover what happened to the inventor?