The deathstones Author:E.L. Arch None. On the planet Isis, Jack Landers needs a crew for his ship, the Motley, and hires one of the local aliens,a bush-basket sized mass of protoplasm, as well as a caterpillar-like Anubian and a lizard-like Serapian. Agreeing to transport a number of passengers to Osiris begins an adventure filled with mystery.