A Planet Almost Like Ours-End Times?

In A Planet Almost Like Ours--End Times?, Dounae de Dody, Willobee Wille, and their trusty desert guide, Baloo Dounae, have to prevent all time from being undone by the mysterious Um--a product of ancient and long-lost Dounae technology. A new character, Impotent-hep, tries to prevent their expedition, but his failure produces unexpected results.