delivered the opinion of the court.
The appeal here is from a judgment of the District Court of Ponce from which it appears that when the case was called for trial the defendant, although he had filed an answer, presented an objection that the complaint did not state a canse of action, and the court sustained snch objection.
The complaint, sets forth in substance that some of the heirs of Félix Olivieri Cervoni brought a suit in equity before the District Court of the United States for Porto Eico *1116against some of the other heirs of said decedent. One of the properties involved in the proceedings was the estate “Limón” which in the course of such suit was taken possession of by a receiver; that the rights of said decedent to such estate arose from a contract incorrectly styled by the parties as one of lease and promise of sale bearing date of October 24-, 1900, which is and was a sale by the Succession of Don Vicente Alvarado to the said decedent for the sum of $15,600, which the said Olivieri was bound to pay to said succession in the term of eight years from August 1, 1900, at an annual interest of 12 per cent represented in the contract of sale as instalment of rent; that the heirs of Alvarado, alleging themselves to be the owners of said property “Limón,” intervened in the said suit and demanded the return of such property by virtue of the said contract improperly called a lease and promise of sale, as well as by reason of the alleged failure to perform the same on the part of Olivieri or his heirs, which complaint in intervention was answered by the parties in the principal suit; that during the controversy between the intervenors and the principal parties and by virtue of the acknowledgment and admission made judicially and formally by said intervenors that such contract improperly called a lease and promise of sale was in reality a mortgage, there was pronounced by the said Federal Court an order, by mutual'consent, bearing date of June 7, 1907, by which it was ordered and decreed that such property “Limón” belonged to said Succession Olivieri, but subject to an incumbrance or mortgage of the purchase price in favor of the intervenors; that in May, 1910, the Federal Court passed a decree deciding the principal suit and proving that creditors whose rights had been determined by previous orders of the court might purchase their respective credits after the debts of the receivership had been first satisfied, by virtue of which decree the rights of the said intervenors were determined leaving-open only the amount of their claims; that said intervenors by deed sold and assigned their- aforesaid incumbrance, mort*1117gage or litigious right in, on, or with respect to the property “Limón” to Walter McK. Jones for the sum of $18,000, $5,000 payble on January 1, 1911, and $3,250 payable on the first of each succeeding year; and in said deed the facts leading up to the aforesaid decrees of June 7, 1907, and May, 1910, were set forth and it was specified that Mr. McK. Jones should be subject to all the equities that may have been created by virtue of the said suit before said Federal Court; that said Jones filed in said Federal Court a petition not notified to complainants, by which he seeks to recover the sum of $14,000, more or less, as rents matured during the years from 1900 to 1908 by virtue of said contract of lease and promise of sale; that the complainants are disposed to satisfy and reimburse the said Walter McK.. Jones the sum of $18,000 according to the tenor of his contract with the Succession of Alvarado, or in such form and manner that the court thinks right or proper, along with interest and costs in order that, in consideration of said payment and reimbursement, it may be declared and decreed that said litigious rights sold by the Alvarado Sueession to said Walter McK. Jones be canceled.
This state of facts does not bring the complainants and appellants within the provisions of section 1438 of the Civil Code in regard to a litigated credit. According to the appellants’ own statement no controversy existed between them and the Succession of Alvarado as to the existence of the credit. They agreed that it was a debt in the nature of a mortgage. Appellee may be insisting that it is another thing, namely, overdue rental; but such assertion cannot relate back to the assigned thing and make it a litigated credit previous to its assignment. The litigation prior to the assignment had ceased to exist. The fact that appellee had filed a petition in the Federal Court invests the credit with no different special character. According to the complaint here such petition has never been notified to appellants nor does it appear that the Federal Court took any action on the petition of *1118said Jones. Certainly the appellants have not answered the petition and a litigated credit does not arise according to section 1438 of the Civil Code nntil an answer has been filed. Section 1438 contemplates a dispute over a debt. Here the dispute was not over a debt but over the nature of appellants ’ right to the property of which they were put in possession by Alvarado or his Succession. The question was whether they possessed the estate as owners subject to a mortgage or were merely lessees. The credit extended was not in controversy. Appellants did not bring themselves within the letter or spirit of section 1438.
If, as appellants maintain, the answer in the present suit may be considered to show that the nature of the estate they possessed continued to be contested by the Alvarado Succession in the Federal Court, and that the judgment of the Federal Court did not settle the controversy, then in such event the complaint here would be subject to the objection of another suit pending. Before the appellants would have a light to redeem they must prove their claim that the estate is one merely subject to a mortgage. Such proof would be a condition precedent to the right to redeem, but the nature of the estate is confessedly the object of the Alvarado intervention and the present suit would be subject to the objection of litis pendens.
However, we do not think that the answer can be considered. The absurdity of reading words into a complaint when it contains a different allegation is manifest. The essential -averment of the complaint relates to the nature of the estate and when a demurrer is interposed complainants must stand or fall by the averments of their complaint. The cases cited by appellants, namely, 110 Cal., 169; 99 Cal., 259, and 113 Cal., 532, are only authorities to the fact that when a complainant has gone to trial and obtained a judgment, if the complaint should lack some averment that is supplied by the answer, the complaint, after such trial, is considered cured or aided by the answer. Such a condition of things *1119amounts to a waiver or an estoppel. However that may be, where there is a demurrer to the complaint, pleadings only being involved, that complaint must be considered alone. A defendant has a right to be advised by the complaint what is the theory of the complainant’s action. The complainant should by amendment or otherwise show to' defendant on what facts he relies to prove his case.
The other principal contention of the appellants is that they have a right to redeem by virtue of section 1407 of the Civil Code. That section provides as follows:
“Section ,1407. In the sale of real property, even though it may have been stipulated that in the absence of the payment of the price within the time, agreed upon, the rescission of the contract shall take place by full right, the vendee may pay, even after the expiration of the period, as long as he has not been summoned either judicially or by a notarial act. After the suit has been instituted the judge cannot grant him a further period. ’ ’
If the answer might be considered, it would show that there is a judicial summoning; but we are bound to take the complaint as it stands. We think the words “the vendee may pay” mean what they say. A payment or its equivalent must be made. The complaint alleges neither payment nor tender of payment. To bring themselves within the tenor of this section a consignation was necessary or at least an averment of tender and refusal. There was no such averment. The complaint, moreover, confines itself to offering to pay Jones what he paid to the Alvarado Succession, to become responsible for his undertakings, or such other sums as the court might determine. There was no offer to pay the original credit which was the thing that Jones acquired. The attitude and admission of the parties, moreover, demonstrates that they were relying on section 1438 and not on section 1407. The judgment must be affirmed.
Affirmed.
*1120Chief Justice Hernández and Justices del Toro and Aldrev concurred. Mr. Justice MacLeary signed stating that he concurred in the judgment, but not in the opinion on which it is based.