Two very good audiobooks read by Elisabeth Sladen as Sarah Jane Smith. In The Time Capsule, the team find their work experience disrupted by time-travelling aliens; The Ghost House has a similar problem but in the house down the road. Neither is totally perfect (Anghelides could work on his pacing; Cole has Sarah occasionally switching from first person to omniscient third which no doubt looked better in the script than it sounds) but both are fun listening.