Out of curiousity, I wondered how much hedgehog activity there would be in the garden on the night of the Summer Soltice, the shortest hours of darknesss in the year. Below is a slideshow presentation showing all the night's captures.
Note, at 11:18pm Elsa gets into shot. I had just put some more mealworms down (funny that the camera didn't photograph me) and also threw down a piece of over-ripe banana, which is what Elsa was investigating and which can be seen in subsequent frames getting gradually smaller and smaller. So there we have it - proof that hedgehogs like banana!