The single question in this case is, whether bail can be charged, as for an avoidance of their principal, by a return of non est inventus, before the return day of the execution. We think they cannot. If this suit could be maintained, it would tend to alter and enlarge the responsibility of the bail. If the principal dies before the return of the execution, the bai'. are discharged; the surrender of the body becomes impossible, and the obligation is saved. But it must be a return regularly made at the time directed by the execution ; the regular return day. Applying this principle to the present case, suppose the principal had died after the return of non est inventus into the clerk’s office, and before the return day fixed by law, and expressed in the writ; it appears quite clear that the bail would not be fixed. The books are full of authorities to the point, that the bail are not liable until the return of the execution, showing that the principal cannot be found ; and the statute is to the same effect. Rev. Sts. c. 91, § 5. It does not say, in terms, that bail shall not be liable before the return day; but we think the law assumes that- the writ will be returned at the time when by law, and the precept of the writ itself, it is made returnable.

The only case having a different aspect is that of Ranlet v. Warren, 7 Mass. 477. In that case, the clerk, by mistake, is sued an execution returnable into the clerk’s office, at the expi ration of six months, instead of making it returnable at the next court. That case appears to have been decided upon the form of the pleadings. The writ alleged that the principal had avoided. The defendant pleaded a bad and immaterial plea, to which the plaintiff demurred, and had judgment. The officer made his return of non est inventus at the return day fixed by the writ, so that by the form of the execution and return there was an avoidance of the principal; and the court thought the error of the clerk was a mere irregularity which did not render the exe> *329sution void, and that no advantage could be taken of the mistake of the clerk, in that state of the pleadings, and between those parties. We think, therefore, that there is nothing in the principle of that case opposed to our present decision.

Plaintiff nonsuit.