Answer:No, this is not a good defense
Explanation:
An agent is a person acting on behalf of a principal as regards contract relationship for which the principal will be liable provided the agent adhere to.
Disclosure of principal The identity of the principal must be fully disclosed at the time of contract.
The non disclosure of the principal will make the contracting party believe he his dealing with the agent and for any breach thereon the agent will be liable.
In the above scenario the principal was not disclose and this makes Parke Bennet liable.