From School Library Journal
Grade 3-5-An easy-to-read chapter book that uses characters from fairy tales and nursery rhymes to create an original story that includes elements of fantasy, adventure, and mystery. During recess, Becky and Simon's favorite substitute teacher, Mr. Merlin, transports the two of them to fairyland, where they meet seven dwarves with names like Archimedes and Einstein and help them determine who stole their sack of diamonds. After Walpurgia the witch tells Simon a riddle that contains the thief's name, Becky makes use of the Roman numerals that were the subject of a recent school lesson to decipher it. Mission accomplished, they return to their classroom before recess is over. The premise here seems overly contrived, but the solution is clever enough to maintain readers' interest. The story stands well on its own, even though a prior adventure with Mr. Merlin is mentioned a couple of times. Amusing pencil drawings appear intermittently throughout the text. Not Brittain's best work, but an adequate addition.
Marilyn Long Graham, Lee County Library System, Fort Myers, FLCopyright 1994 Reed Business Information, Inc.
Gr. 1-4. An enticing beginning chapter book with a great cover, clever math connection, and allusions to nursery rhymes, fairy tales, and famous scientists/inventors,
The Mystery of the Several Sevens features Mr. Merlin, the magician of old, as a fifth-grade substitute teacher. During recess, he whisks two of his favorite pupils, Becky and Simon, to another land where they must solve the mystery of who stole the seven dwarfs' 10-pound bag of diamonds. Of course, they are successful, with the help of deductive reasoning, their trusty calculator, a brief history of the origin of surnames, and a large dose of cultural literacy along the way.
Frances Bradburn