Dredd becomes convinced that only by using Oracle Spice will he be able to find the Child, and after further dangerous adventures he gains this on the planet Necros. Oracle Spice gives precognitive powers to whoever takes it (similar to the spice from the "Dune" saga), but is very dangerous to the inexperienced user. Dredd orders a member of the Justice One crew, Judge Lopez, to take the Oracle Spice. This kills Lopez, but not before he reveals that the location of the Judge Child is known by the 'Jigsaw Man,' whom Dredd traces to the planet Ab. The 'Jigsaw Man' is a human called Prosser who had been the pilot of a spaceship hijacked by the Angel Gang, who are heading to the free robot planet of Xanadu. Prosser's nickname stems from the fact he is a victim of the alien wasting disease known as "Jigsaw Disease", which causes the victims to vanish piece by random piece. Just before he dies he tells Dredd that he believes the Judge Child is evil, because it was the Judge Child who caused him to catch the disease in the first place, apparently intentionally.