My elevator pitch

I finally thought of a good elevator pitch for TELLURIAN SUNS: SEEING THE LIGHT.

"A family friendly thriller about an alien activist who is robbed of a mysterious glowing stone, learns that it's not the only one out there, and has to get all of them before two secret societies use them for their power."

Thanks go out to Nathan Bransford for his blurb about his upcoming book which was most of the inspiration for my elevator pitch. Tell me what you think in the comments.

Also, soon I'll be posting what I have for my query letter, as that is the next step in this journey!