If you have an iPad or similar, the Sorcery! apps by twinkle are amazing - especially 4, but great to go through them all.I have one of the original Endless Quest books (Dungeon of Dread). It's decent for what it is, but I always enjoyed the Fighting Fantasy books, especially the Sorcery! collection, much more. Still, nice to see these coming out again. I'm sure I'll buy some of them for my son.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.