Macro to go back to the last active sheet and hide the active sheet

Hello All,

I use the macro below to go back to the last active sheet and it works.

Public LastWorksheet As String

Sub PreviousSheet()
If LastWorksheet <> "" Then
Worksheets(LastWorksheet).Activate
Else
MsgBox "No other Sheet has been selected."
End If
End Sub

I also want to hide the active sheet before turning back to the last active sheet and add something like this to the above code but somehow it doesnt work.

ActiveSheet.Visible = False

Any help would be much appreciated!