Querying multi-map index from MVC Controller using dynamics

PeopleController.cs

 private IDocumentSession _session;
 public PeopleController(IDocumentSession session)
 {
     _session = session;
 }  

 public ActionResult Index()
 {     // insert a User & a Person into RavenDB
       _session.Store(new User { Email = "user@domain.co", Name = "user 1", UserName = "user1" });
       _session.Store(new Person { Email = "person@domain.co", Name = "person 1", PersonName = "person1" });
       _session.SaveChanges();
       //Query the index
       ViewBag.people = _session.Query<dynamic, PeopleIndex>();
       return View();
  }