I have following razor script. To navigate previous and next node and middle link to parent node. this is then inserted in every child node.

<div id="bottomNavigation" style="clear:both;">
     <center>
@{
     
        if (@Model.Previous() != null) {
           <div> <a href="@Model.Previous().Url"> Previous</a></div>
        }
      
     else if(Model.Where("nodeTypeAlias == \"Treasure\""))
      {
      <div> <a href="@Model.Parent.Url">Back To Akram Treasure</a></div>    
      }
       
  
      if (@Model.Next() != null) {
           <div> <a href="@Model.Next().Url">Next</a></div>
        }
    
    }
</center>
  </div>

the problem is that it is not showing Next link. It shows 'Previous' and 'Back To Akram Treasure' but why not showing 'Next'? If I remove code of 'Back To Akram Treasure' link then it shows Next link.