"Secret materials about demigods" contain history of three alarming experiences of Persy Jackson, never before not giving way to publicity. you hear about that, how Перси met with the immortal and cruel sons of Ареса. you will read a true about a bronze dragon that in Camp of полукровок long time considered only a device. you will see that Аид provided oneself a new secret weapon and as Перси involuntarily forced to participate in his creation. But if you will make bold share this information with anybody from strangers. Oh, it can strongly not please to Clarissa - be afraid of anger of this woman with an electro-spear!The cycle of Rick Риордана about Persy Jackson became one of the best supersellers of the last years. The High-budgetary screen version of adventures of Persy strengthened and increased success of book serial and added to the author millions of admirers in the whole world.