Time Hole (Terraspantion Chronicles Book 2)

Falling in a Black Hole kills you. Falling in a Time Hole kills others.
The Moon has many riches, but mining them is a hazardous affair. Deedee and Arno, two lunar generalists, find perils beyond what they signed up for when traveling on the lunar surface at night . . . on the dark side of the Moon. Time will not be the same after they fall into the Time Hole.