One of the last two Sarah Jane audio books, featuring the voice of Daniel “Clyde” Anthony and a story by Martin Day about a timetravelling steampunk android (the “difference golem”) which needs to be sorted out by SJS and pals. I have not seen the last series of SJA so the character of Sky was new to me, but the story is well done and Anthony a decent reader who sensibly gets on with trying to convey emotion and character rather than imitating voices.