Sanctuary

Mercy Smith leads the team that is building the fastest space shuttle ever. Now her friend Red wants to steal the unstable Tetra-1 because Earth needs the information from an orbiting alien artifact. When Mercy volunteered to ride along to prevent the prototype from exploding, she didn't count on Chinese and Muslim weapons of mass destruction or corporate spies. After landing on the artifact, she discovers there's a new world inside, one they name Sanctuary. Although there are vast...
More Description

Mercy Smith leads the team that is building the fastest space shuttle ever. Now her friend Red wants to steal the unstable Tetra-1 because Earth needs the information from an orbiting alien artifact. When Mercy volunteered to ride along to prevent the prototype from exploding, she didn't count on Chinese and Muslim weapons of mass destruction or corporate spies. After landing on the artifact, she discovers there's a new world inside, one they name Sanctuary. Although there are vast technological treasures, first the astronauts have to pass a complex test to see whether humanity is fit to enter its next phase-before the missiles arrive. No pressure. This third book of the Jezebel's Ladder series is an alien-encounter and coming-of-age story in the tradition of Arthur C. Clarke.