The Alien Sphere Trilogy
by V Bertolaccini
A trilogy with three high quality action-packed novels of explorers encountering mind-bending alien artifacts! In The Alien Sphere explorers find a pulsating alien sphere and enter a black hole it holds. In The Alien Artifact explorers uncover an alien artifact with a deadly voyager inside. In The Lost Alien Artifact something of alien origins creates the deadliest haunted castle in existence.