text: prisonerTransfer = function (prisoner, 
                               otherDungeon, 
                               ourDungeon, 
                               notifier, 
                               callback) {
    var keeper = ourDungeon.getOrc()
    var carriage = ourDungeon.getCarriage()
    var transfer = prepareTransfer(carriage, keeper, prisoner)
    transfer.sentTo(otherDungeon, function (err) {
      if (err) {
        callback(new Error("Transfer initiation failed."))
      } else {
        notifier.message(otherDungeon, transfer)
        callback()
      }    
    })
  }
  
  function prepareTransfer(carriage, keeper, prisoner) {
    return {}
  }