# 4 in the series. Tagg Raven settles into his new role as Boss of the D S I. Ships and people go missing in deep space, and the first thought is of piracy. If only things were that simple. With no demands for ransom, Boss Raven was powerless to do anything about the situation. General Millet and his ships are sent out to investigate possible hideaway planets. The old enemy returns to haunt them