Magic Tree House: Stallion by Starlight

Horses, heroes and an epic trip in time. Meet the original war horse: Bucephalus, the mighty steed of Alexander the Great. Jack and Annie must find the four secrets of greatness for Merlin the magician. So Alexander the Great and his famous horse seem like the perfect place to start. Alexander should know all about greatness, right? Uh, wrong. Young Alexander is bossy, vain and not very great at all. How can they learn from him? With the help of a wild black stallion, some magic from Merlin and a lot of courage…