In the 24th installment of Barbara Park's Junie B. Jones series of illustrated early chapter books, Boo... And I Mean It!, the precocious first grader is worried about Halloween--with good reason. Paulie Allen Puffer has given her five good reasons, in fact, not least of which is that real witches and monsters go trick-or-treating on Halloween (no costumes necessary); if you carve pumpkins with pointy teeth, they will bite your feet; and...shhh...candy corn isn't really corn. Junie B. goes to great lengths to avoid trick-or-treating altogether, but she finally decides that if she dresses up like Squirty the Clown (a disturbing circus clown who terrified her grandmother by chasing her with a seltzer bottle and making her wear an "unattractive balloon hat"), even the most horrific witches and monsters will be scared off. As ever, her way of expressing herself "I did a groan" and "Chills came on my arms" is grammatically unique, but as you get to know her, more endearing than alarming. Children who have mixed feelings about Halloween festivities will relate to Junie B.'s fears, and they'll be relieved when Halloween passes without a monster attack or pumpkin bite, just a delicious bag of 100% candy. (Ages 4 to 8) --Karin Snelson