PhD: Phantasy Degree (PhD: Phantasy Degree #7)

Wielding the Ring of Life, the villainous Stonia lays siege to the Master Tower. Fighting beside her is the nefarious Henduh, who will use his "Holy Breath" to utterly destroy the Master Tower. But several students from the Magic Academy Athena have emerged from the Tower more powerful than ever! Can they help Sang and Chun-Lang defeat Stonia and Henduh before it's too late? And who is the mysterious Sage who resides in the Tower, and what incredible secret does he know about Sang...?