The rule has already been stated, that an agent ordinarily can have but one master, and where a third person employs the agent to work for him in the same line of employment, for which he has already been engaged, without the principal's knowldege or consent, this is the worst kind of fraud on the principal, and the second contract, made by the agent would not be recognized as in any way valid between the third person and the agent. The principal would not be bound to recognize such a contract, the double agency is in every respect a fraud as far as the principal is concerned,13 and it does not change the case, where it is shown the principal had suffered no real injury, or that the third person had no real intention of doing any injury by so hiring the agent.14

12 U. S. Rolling Stock Co. vs. Atlantic, etc., R. R. Co., 34 Ohio St., 450.

13 N. Y. Central Ins. Co. vs. National Ins. Co., 14 N. Y., 85. 14 Switzer vs. Skiles, 3 Gilman (I11.), 529.