Lantern

FIG. 1 is a top front perspective view of a lantern according to the present design. FIG. 2 is a bottom rear perspective view of the lantern of FIG. 1 . FIG. 3 is a front view of the lantern of FIG. 1 . FIG. 4 is a back view of the lantern of FIG. 1 . FIG. 5 is a left side view of the lantern of FIG. 1 . FIG. 6 is a right side view of the lantern of FIG. 1 . FIG. 7 is a top view of the lantern of FIG. 1 ; and, FIG. 8 is a bottom view of the lantern of FIG. 1 . The broken lines depict portions of the lantern that form no part of the claimed design.