00921cam a2200265 4500 298627670 TxAuBib 19960927120000.0 951127s1996||||||||||||||||||||||||eng|u 95047979 /AC 9780763600570 hc 12.99 0763600571 hc 12.99 (OCoLC)33897773 DLC DLC TxAuBib Maisner, Heather. Planet monster / by Heather Maisner ; illustrated by Alan Rowe. 1st U.S. ed. Cambridge, Mass : Candlewick Press, 1996. unp. The reader must solve various number puzzles in order to keep the Mad Mathematician from destroying the universe. 19961001. Mathematical recreations Juvenile literature. Picture puzzles Juvenile literature. Rowe, Alan.