Libby thinks that what happens outside the window of 3rd grade 2 is much more interesting than a calculus class that happens inside. One day she sees something disturbing through the window, and from there things get more and more complicated. A story about a girl with a big heart who doesn't like math, but in the important lesson, the one you don't learn at school, she strives to get to the truth and manages to find out what happened to the man-with-the-dog. Hadas Leibovitz was also a girl who did not like calculus. Wrote 'Dinosaur's Cub' and 'The Lion King'. This is her third book. Daniel Peleg received special permission from the teacher to draw in class. A graduate of the Bezalel Academy of Art and Design and an illustrator of books and newspapers.