Silver Unicorns and Rainbow Dragons

Thomas escapes to Thantera and experiences many exciting adventures. Everyone says he is living in a fantasy world, but Thomas knows they are mistaken. He goes along with them to keep them from ridiculing him, but he knows.

Can he save his sisters from a horrible fate? The power he receives from the Silver Unicorn is not strong enough. He is tempted to accept the help of the Rainbow Dragon. But, according to the advice of the Silver Unicorn, that would be the worst mistake of his life. The Rainbow Dragon is evil.

Does Thomas accept the help from the evil dragon, or does he remain faithful to his friendship with the Silver Unicorn? And, how will he save his sisters? Which is the most important in his life, his friendship and loyalty, or his helping his sisters escape a horrible fate?