Who Stole the King of Pooka Pooka's prize elephant? Someone has stolen the great gray beast. The King calls in Big Max, the world's greatest detective. But the clues are very puzzling. Could this be too big a mystery even for Big Max? MY FIRST I Can Read Books PreSchool LEVEL 1 I Can Read Books PreS - Grade 1 * LEVEL 2 I Can Read Books Grades 1 - 3 LEVEL 3 I Can Read Books Grades 2 - 4 I Can Read Chapter Books Grades 3 and up.