Darkness Falls (The X Files, No. 2)

Agents Mulder and Scully are tracking terror deep in the forest, where loggers have been disappearing into thin air. Is this the work of eco-warriors, trying to protect their beloved trees? Or an unearthly evil, indulging in a feeding frenzy'every night, when the light fails? One thing is certain: Scully and Mulder need answers before darkness falls...for good!