Enter the world of extremes. Dive down to the ocean's deepest depths,
speed along a winding racetrack, and find poo that makes you go eww!
These hi-lo adventures are a perfect way to discover the most amazing
extremes of our world. Struggling readers in grades 3 through 5 won't be
able to put down these accessible books written at a 1st and 2nd grade
reading level.