MONSTER RALLY (91 pp.)Charles Ad-damsSimon & Schuster ($2.95).
AFTERNOON IN THE ATTIC (135 pp.)John KoblerDodd, Mead ($3.75).
As every child knowsand as readers of The New Yorker are regularly remindedthere lives, in that gloomy, crumbling mansion on the other side of any town, a happy family of unmitigated fiends. They are poor as cemetery mice, but honest as the night is long, and like true soldiers of the great Damnation Army, they darken their corner of town with all the vices that the Devilwith some help from a man named Charles Addamscan conceive.