This game is valuable because it is not too long or too complex with only 8 challenges.
It has a definite sequence of events, timing, correct answers etc. This way your child can get to the end of the quest and feel good about having solved the master puzzle! There is reading involved so you will need to sit alongside a younger child so they can enjoy the game without frustration, but children on the cusp of reading will be self-directed and will WANT to try to read it themselves.
Great iPad App for kids!