Wake Up, Santa Claus! ($15.95; PLB $15.88; Sept. 16, 1996; 32 pp.; 1-55858-605-9; PLB 1-55858-606-7): Santa oversleeps, can't find his boots, forgets to shovel the walkway, feed the reindeer, bag the presents. Then comes the big clue: Santa's sleigh runners are cracked and rusted. A bad dream is what we have here, and Santa wakes to his alarm clock and finds everything shipshape. Despite Santa's frantic behavior, readers will soon be able to predict that everything that can go wrong will go wrong, and may guess that there's a misunderstanding somewhere. This is best served to Pfister's many fans, who won't see the framed picture of Rainbow Fish on the wall as a not-so-subtle piece of cross-promotion. (Picture book. 3-7)