Evil Under The Circle (G1: The Guardians) by Steve Smy
Price: $0.99 USD. 15680 words.
Published on April 17, 2013. Fiction.
A chance find of a tunnel under an ancient stone circle leads to a terrible secret, hidden millennia before. As terror strikes, and evil consumes, only one group can help: the Guardians. Their elite team, G1, arrives and must overcome the ancient evil. If they fail, then the very world will be destroyed.
The second novelette in the "G1:The Guardians" series.