The Invisible Moose by Dennis Haseley

When the most beautiful moose in the forest is captured by an evil trapper, a shy young moose knows that he must take action. He has always secretly been in love with the beautiful moose. Now he will follow her all the way from Canada to the wilds of New York City. He will rescue his true love come what may. But how? Luckily, Professor Owl McFowl has concocted a new formula—an invisibility potion!
It’s a delightfully silly story of magic and adventure with a surprisingly touching core. Our moose hero’s tale shows us that the truest beauty isn’t visible to the eye—it can only be seen by the heart.