supernaturalThey followed the track towards slightly higher ground. Walking seemed to take much less effort; it wasn"t quite like floating, but it didn"t seem to be using any physical energy.
"What fuel are we running on?" she asked, intrigued. "It"s not physical."
"We possess many levels of subtle energy," he explained. "But we haven"t developed machines that are sensitive enough to measure them." After a thoughtful pause, he added, "Maybe that"s for the best."
The hazy glow was dissipating. The night sky was visible and Jan could hear the stars hissing and crackling, as if she was standing in the Sahara Desert atop the Grand Erg Occidental. There seemed to be many more stars than usual, so dense she felt overwhelmed. Shocked, she realised these took their place among the stars of a di
