The first toy based on the popular Doctor Who children's spin-off series 'The Sarah Jane Adventures', this deluxe action figure set contains Sarah Jane Smith (with alien communicator accessory) and the alien 'Star Poet' (with light-up base), as featured in the episode 'Invasion of the Bane'.
The RRP for this figure is £14.99 but Tesco Extra in Cardiff had it for £3.74 (halved a few months ago and now halved again, so 25% of full price). I assume the same price applies nationwide. It's not shelved with the Doctor Who toys, but in the girls' section.
The figures aren't available on the Tesco website.
One more thing that may be worth noting: the shelf tag called the alien 'Fire Angel', rather than 'Star Poet'.