The planet Bellatron, a cave where ancient artifacts are means that a specialist is needed, namely Bernice Summerfield.

This audio starts with a lengthly 7ish minute monologue which is then followed by another 6 minute scene, so its 15 minutes before our hero is involved with the action, and really I could done without it. I'm very much a person who struggles to absorb information until I need it, so it was a bit lost on me.

The set up is interesting; Bellatron's orbit takes it into Sontaran space so there's a time limit for Benny to get the job done, and its not as striaght forward as it appears. Of course with the Sontarans come the Rutans. We also have Bev Tarrant, and its been a long time since I listened the the early Doctor Who audios she featured in, but being a little ignorant of the character wasn't an issue. I quite enjoyed the discoveries made by Benny - that the articfacts may not be quite what they seem.

It kept me interested and there's a bit of a twist to it, although I did have to go back a couple of minutes at the end as I'd missed an important detail.

A reasonable story, entertaining.