By means of a read magic spell, the wizard is able to read magical inscriptions on objects -- books, scrolls, weapons, and the like -- that would otherwise be totally unintelligible. This deciphering does not normally invoke the magic contained in the writing, although it may do so in the case of a cursed scroll. Furthermore, once the spell is cast and the wizard has read the magical inscription, he is thereafter able to read that particular writing without recourse to the use of the read magic spell.
Note: This version of read magic originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.