It's been an interesting few days, you think, as your dad drops you off outside the German Christmas market and hands you a wad of cash to spend. You've been visiting him and his new family in Germany for a few days between Christmas and New Year, trying to get to know him again. You haven't seen him since all that business with the Berserker and it's been a bit of an awkward few days, but it's getting better and on the whole, you're glad you came.

Still, you think, it's nice to get a little bit of time to yourself, while Dad goes to sort some things out. Some thinking time. You could have stayed in the house but you've never been to a real German Christmas market before, and since Dad's showering you with cash it seems a shame to waste it.

You wander in, enjoying the feeling of being in a new place, listening to the people talking a language you don't understand. The market is enormous - one of the biggest in Germany, Dad said - and bustling, and you hardly know where to start. You pass stalls piled high with crafts, toys, ornaments and jewellery - it's a shame Christmas is over already, you think, but you'll probably get another present for your mum anyway.

You're more interested in the food stalls, though. As you wander down the first aisle you spot more kinds of sausages than you knew existed, pancakes, waffles, cheeses - there's so much that you hardly know where to start.

You're distracted, suddenly.

'Clyde Langer!' says a voice. 'Clyde Langer!'

You turn around, looking one way and then the other, but you see nobody you recognise. You shake your head, thinking you must have imagined it, but then you hear it again.

'Who's that?' you ask.

A few shoppers frown confusedly at you, but nobody responds.

'Clyde Langer!' This time you can tell where it's coming from, down a smaller aisle off this one. It's narrower and dark from the stalls leaning inwards with their awnings, and there are fewer people down there.

Sarah Jane is always telling you to trust your instincts, and right now they're telling you that something isn't quite right. Mysterious voices calling your name, in a country where you know a total of three people, are definitely a cause for concern. But what if you're imagining it? It's pretty noisy here, it could be something else that you're hearing. And anyway, is it a good idea to investigate? You're all by yourself in a strange country, and you feel a little less brave than you might at home.

You decide not to investigate. Something fishy is going on here and you don't feel confident dealing with it.
You decide to investigate. That's what Sarah Jane would do.