Our GeekWire Trivia Challenge is back as part of this week’s GeekWire radio show and podcast, featuring a chance to win a pair of tickets to the Seattle Symphony’s July 17 performance of The Lord of the Rings: The Fellowship of the Ring with the Seattle Symphony.

Here’s the question: Which tech startup was named after a “seeing stone” in Lord of the Rings? If you think you know the answer, send it to contest@geekwire.com. From the pool of correct answers, we’ll pick one person at random to win the pair of tickets.

If you’re stumped, listen to the GeekWire Trivia segment below for another big hint.