Anthony Sailer: 2 books

In 1988 Todd discovered the secret of time travel from his step brother Jeff. Together they traveled to the Fourth Dimension where they met a species made of energy. The encounter quickly led to war as Todd assembled a team to explore and fight with him and Jeff. After a three year period the journeys...

All is quiet on Earth as everything appears normal. Then, one weekend after dropping his kids off back home Todd returns to his apartment to find that a signal to contact his energy warrior allies has been sent from the fourth dimension. He travels there and learns of a new threat from the sixth dimension...