delivered the opinion of the court.
The complainant, Steele, charges that on the 14th day of April, 1865, he was the lawful owner of a valuable tract of land situate *368in the county of Ouachita and state of Arkansas, containing four hundred and thirty-five acres, a part of which was improved and then in cultivation, arid that the complainant also owned and was possessed, of fifty head of cattle, fifty head of hogs, thirty-five bushels of corn, five bushels of seed peas, eight bee-gums, a large lot of household and kitchen furniture, together with a growing crop of thirty acres of corn, and a growing crop of twenty acres of wheat, which land and property were of the value of $10,000; which sum the defendant agreed to pay in property of that value, to-wit: negro slaves, which the defendant claimed and owned as his property, and thereupon executed to the complainant a bill of sale for six negroes, which he then warranted to be his property and slaves; which negroes, so warranted to b'e the property of the defendant and slaves, complainant accepted at the value aforesaid in payment and satisfaction for said tract of land and other property; and thereupon, together with his wife executed to the defendant a deed in fee simple for said tract of land : that at the time of such sale, and the execution of such de.ed, he the complainant was ignorant of the fact that; long before that time, slavery had been, and then was abolished and prohibited by the constitution of the state of Arkansas. That he made the contract, and conveyed the lands and other property in good faith, believing that the said six negroes so conveyed were slaves, and worth the sum agreed upon. That he was induced to make the trade and execute the deed for the land, upon the faith and confidence in the representations of the defendant, and that the negroes were slaves; but in truth and in fact that said negroes were not slaves, but were then free, and that defendant had no title or property in them whatever. And that he knew at the time said conveyance was made and consummated, that they were not slaves, and that he had no right to dispose of them as such. That defendant, although requested so to do, had refused to pay the complainant .the sum of $10,000,- the price agreed upon, or to re-cbnvey and re-deliver the land and property so conveyed by the complainant *369to him — with a prayer for the payment of the $10,000, or that the sale of the land may be set aside and an account taken, etc:
To this bill the defendant demurred; the demurrer was sustained, and a decree rendered dismissing the bill, and for costs; from which the complainant appealed.
The several allegations in complainant’s bill, which are set forth at greater length than we have considered necessary to repeat here, must be taken upon demurrer as being true; and the question is, when thus taken, is the complainant entitled to relief in a court of equity?
That the complainant contracted under a mistake, there' can be no doubt. No one can believe that any man in his senses would have conveyed $10,000 worth of property, to which he' had an undisputed title, for no other consideration than negroes, if he had known that the negroes were not property, and that he could not in law, for a single day, command their services. The bill expressly avers that complainant was ignorant of the fact, that by the constitution of 1864, negroes were freed, and that the defendant, at the time he made the trade and represented the negroes as being slaves and his property, knew that they were not property, but were free. It is beyond all question, from the statements in the bill, that the defendant has possessed himself of valuable property worth $10,000, for which in fact he has paid not one cent, and if the bill be true, he knew, at the time he made the contract, that he was paying nothing for the property received by him. And the defendant comes into a court of equity and says that I admit this to be true, and yet a court of equity can give to the complainant no relief, because this mistake was not of fact but of law; and that the rule, ignora/nUa jwis no exeusat, must prevail, and denies to the complainant all relief. The existence of this rule is fully recognized, but there are exceptions to it, which are equally well tinderstood. This question of ignorance, or mistake of law was fully considered by this court in the case of The State vs. Paup., 13 Ark. Rep., 109, in which the general rule, as well as the exceptions to it, was considered, and in which *370it was held that even though the party contracting did know of. the existence of the law; yet as he mistook its legal effect, equity would relieve him. In that case as in this, the complainant got nothing by his contract, and the defendant, the state, lost nothing, parted with nothing.
It is insisted that the complainant should have returned, or offered to return the negroes. We think not. Defendant had no negroes — sold none to complainant — negroes were not the subject of sale; they were not property at the time this contract was made. The complainant acquired no title to them, and could not lawfully, for an instant, control them. Consequently he got nothing from defendant and had nothing to return.
The claim of the complainant to equitable relief does not rest alone upon his ignorance of the constitutional provision emancipating slaves, but also upon the ground that the deed made by him to the defendant, and the transfer of the chattels set forth in the bill was made without any consideration whatever. No contract without consideration is valid. A consideration is an essential requisite to all contracts. The deed, however, purported to be made in consideration of $10,000. This, in point of fact, as shown by the bill, is not true. Under this deed, which is prima fade, valid, the defendant had taken possession of the property and claimed ■ to hold it. The deed, even if invalid, created a cloud on the .title of the complainant, which he had a right to have removed. This was .held to be permissible in the case of Cook vs. Cole, 2 Halst. Ch., 522, 627.
In the case before us, the complainant parted with property of the value of $10,000, for which he received nothing whatever. The defendant under this contract took possession of this property, as expressly charged in the bill, knowing, at the time, that he had no title to the negroes, which he professed to sell to the complainant. No one can believe that the. complainant would have parted with his property and received these negroes in payment for it, if he had. known that they were free. He must, in the *371very nature of things, have relied upon the false statements of ■the defendant, with regard to his title to the negroes.
It is true that complainant may have his recourse at law upon his bill of sale for damages upon a breach of warranty of title; but he could not be restored to the possession of his property by any process of a court of law. He is also entitled to have the deed canceled and set aside. This the court of law could not do.
In view of this whole case, which is certainly a very strong one, we are of opinion that the complainant has, upon the face of his bill, shown a case which entitles him to relief in a court of equity; and that the court below erred in sustaining a demurrer to it.
Let the decree be reversed.