Astrosaurs．The Skies of Fear Astrosaurs．[5]，The skies of fear Astrosaurs．The Seas of Doom Astrosaurs．The Planet of Peril Other title:The skies of fear Astrosaurs．[3]，The seas of doom Astrosaurs．The Claws of Christmas Astrosaurs．[15]，The dreams of dread The skies of fear Astrosaurs．[19]，The forest of evil