The water was calm and undisturbed, the pace slow. I had a mental image of Huck Finn and Tom Sawyer floating down the Mississippi. For all the potential issues, life as a Quinlan was probably idyllic. As a natural predator, Quinlans could feed themselves as they travelled. We didn’t know how deep the Heaven’s River ecosystem was, compared to the original Quin biosphere, but it was a safe bet that it was self-sustaining. That meant at least some predator/prey action.