The Last Dragon Chronicles: Dark Fire : Book 5

Fifth title in the fantasy sequence that started with the bestselling Fire Within, followed by Icefire and Firestar and Fire Eternal.With the Earth on the brink of recolonisation by dragons, David Rain is sent on an important mission: to seek out and destroy a trace of dark fire, the deadliest force in the universe. But with success could come a terrible price, the sacrifice of a beloved clay dragon. How much does the life of one small dragon count, when the alternative is the birth of a darkling...?