The Fog is a Secret -- a book likely to stay unheard of. For one thing, any book for small children about fog will have to be measured against Tresselt's and Duvoisin's Caldecott runner-up Hide and Seek Fog. Neither in text nor illustrations does this author/illustrator come close. What seems to be a fairly big boy is shown dawdling along the shoreline on a foggy day doing the sort of things a pre-schooler can think up. The reader is directed to walk along the sand, pick up sea weed, try to see the gulls, etc., etc.. The illustrations are all in hazy gray, the text befogging. The words are easy but the print rather too small for the page--or the beginning reader stage.