M&S have a great range of Early Reader books. Little hard back books for £2.50 each. They do most of the most familiar fairy stories. And as they are aimed at children first learning to read, they are ideal as short bedtime stories for little ones. Not sure on how old your DS is.
Goldilocks & Three Bears:
Mummy bear makes porridge - 3 bowls (big, medium, tiny size) - too hot so go for walk
Goldilocks arrives and goes in house
Sees porridge, tries it. Big bowl too salty, medium one too sweet, tiny bowl just right, eats it all
Sees chairs and wants sit down. Big chair - too high, medium chair - too low, tiny chair - just right and gets comfy. Crack! Oh no it isn't - she's too heavy and it breaks
Upstairs as tored. Big bed - too hard, medum bed too small, tiny bed just right. Gets in and falls asleep
Bears return
Daddy bear "Who's been eating my porridge", mummy bear "Who's been eating my porridge", Baby bear "Who's been eating my porridge, and it's all gone"
Sees chairs. Daddy bear "Whos been sitting in ym chair", mummy bear "Whos been sitting in ym chair" , Baby Bear "Whos been sitting in ym chair and broken it".
Goes upstairs and sees beds. Daddy bear "Whos been sleeping in my bed", mummy bear "Whos been sleeping in my bed" , Baby Bear "Whos been sleeping in my bed and she's still here".
Goldilocks wakes up, is scared and runs away. Not seen again
HTH!