Is "Jabool" Raiffe rhyming slang for "tool" or "fool?"

This work feels publishable to me, albeit I wonder what length you're going for. Short story, novella or novel?

The introduction of these characters indicates a more epic conception than I first assumed, as we really did not need to know who sent the probe, unless the story is set to deepen on that side of things, as well as on the earth's side, the probe's side, and the probe's children's side! Crikey. :)