Annah Chezdouch: and the Sword of Dragons

Annah is an adventurous twelve-year-old girl who loves to hang out with her friends at the muddy creek by her house, until one day, she goes there alone and discovers the creek clear as glass! She falls in, and is transported to a place called Dragonland, where people with dragonlike wings live. She teams up with some friends to find the legendary Sword of Dragons and stop an evil being called the Dragonmaster, and finds herself in a bigger world than she ever knew.