The properties of the object start to be revealed – as do some of the secrets around Silverpoint…

The CBBC series continues to ratchet up the tension in its next three instalments, and, together with the first (see our review here), comprises a strong first act for the season. The central quartet have to open the circle of trust a little bit – things seem to happen more when the four of them are together, and they need someone they can trust watching what happens elsewhere, so Bea, the daughter of Silverpoint’s owners, gets caught up.

Her willingness to get involved partly comes, we realise, from odd things that happened to her when she was younger, and there’s a growing sense of unease about the role of her parents – what is being hidden from the young campers? But indeed what are they hiding from each other? There’s a lot of issues of trust to be dealt with…

The blend of humour and drama is one of the show’s strengths: Glen’s insistence on being the one to be teleported looks as if it’s going to end more tragically than you might expect in a CBBC drama, but it’s a good reason for the lurking watcher introduced earlier to make himself known (although there are plenty of questions about him and Otto still to be answered). Kaz and Meg are beginning to bond nicely – Kaz’s cruel to be kind moments ring very true – and the revelations about why Louis is there are handled sensitively. We’re getting to know a bit more about the other campers, particularly those who are really too old (or consider themselves to be too old) to be there, with teen jealousy rearing its head without any danger of the show veering into romcom territory.

Production values also continue to be high – we get the first proper effects sequence at the end of episode 4, and there’s a suitably lush orchestral score from Jessica Dannheisser that captures the sense of wonder that the four kids and the audience are feeling.

Verdict: Plenty of balls (or chickens) have now been sent flying – let’s see where they land. 8/10

Paul Simpson