As a notion, at least, this is more promising than The Little Witch's Book of Yoga (1979), the last entry in this all-too-long-running series. But the search for novelty turns out to be just as desperate--with one of the three suggested ""Year-Round Parties"" being a ""King Arthur's Knights of the Round Table Birthday Tea Party"" (just the thing for young Galahads garbed, say, like a ""Monster Mouse""). . . and one of the games to be played on said occasion being a ""King Henry VIII Hot Potato Head Game."" (What Henry VIII is doing at King Arthur's Court, the author doesn't say; the potato-head game has reference, as you may have feared, to Henry's VIll's penchant for ""beheading anyone he didn't get along with very well, even a few of his wives. . . ."") The costume and refreshment suggestions, on the other hand, seldom amount to more than a switch of trimmings or a change of icings. Elaborate, outlandish--and unimaginative.