Ala. Code § 11-42-128

From the time the said triplicate of the agreement is filed in the office of the judge of probate, as required in Section 11-42-127, the proclamations having been made and published as required by Section 11-42-126, the one city or town shall be and shall be held to be annexed to and merged into the other city or town under the terms and provisions as set forth in the agreement of annexation and merger.