Issac Newt was a lizard on a mission to prove the law of gravity. All of his friends were busy playing while Isaac studied their movements to make the discovery of why what went up must surely come down. The other lizards found that Isaac was right all along! Now they understood the law of gravity, too. A rhyming picture book for children, Isaac Newt tells the story of this special lizard who stays focused until his mission is complete. This is the second book in the series by Jan Olearnick, following Louisa Moo Alcott.