DS (5) is a really enthusiastic reader and often wants to do more than the reading book he brings home from school (especially during weekends and holidays when he doesn't get reading homework). I see no reason to discourage this so have bought the Songbirds series to read with him at home (at school he's using Bug Club and the Big Cat series, so the Songbirds ones seem to complement that, plus he likes the stories/pictures).
However, he completed most of those over half term and I'm finding that if we repeat the same books, he's remembering the story, rather than actually reading the words - it's fine if we leave a big gap but with only 12 books in the level, we're coming across the same one too frequently. He's in no way ready to move on to the next level - he finds red (level 2?) fairly easy so I've started some of the yellow level with him, which are a nice balance of words he can easily recognise/sound out and some which are new to him.
Can anyone recommend anything in a similar style which I could add to our collection?