Looking for BETA readers which can give me a review for my new YA/Adventure novel.

[Stefanie]

Rocky Flint never expected some weird old man to show up before his house and eager to distribute free gifts (well, except for Santa). If he had, he would have definitely called the cops.
Rocky and his twin sister, Ronny were given a gem each by a loony old man which promises vast magic to whoever who possess them. Both of them were sent spiraling into a whole new world of magic and mystery, until an accident tore Rocky from his entire family, leaving him an orphan with a broken heart only to meet a perky green eyed girl in high school five years later who resembled his long dead sister. When Rocky and his undead sister accidentally stumbled into a lush and magical world named Esvanira with only a childhood story to guide them, both struggled to master their magic and their past, which remained a darting blur.
When their classmate, Peter was turned into a hideous Siren hell bent on killing everyone in the city, Rocky and Ronny must set foot into the magical world of Esvanira and search for the Silver Chalice, a mystical device of old and forbidden magic which resides in the hostile homeland of a foreign race which can free Peter from his inhuman curse. With an unknown mastermind behind their past and an untold dark wish, both must break free from the chains of deceit and uncover the truth.

Anyone who can help me review it please leave a message here...thank you! :D