"The concept of undisclosed principal clearly runs counter to the general contractual rule as to the necessity for privity of contract.The third party and principal find that they have rights against, and liabilities toward, a person with whom there was no intention to contract and of whom the third party was in ignorance."Richard Stone, Law of Agency (Cavendish 1996) 94.

Critically evaluate this statement by discussing the legal position of the undisclosed principal in such a context.

subject: English and International Commercial Law