I've read the 4th book of the "Ember" series, The Diamond of Darkhold.
A bit dark (ha-ha) but think it would still be okay to read to my 7 yr old. He is really enjoying the series (having read 2 of them now.) My oldest is reading the 3rd book and then we'll trade!
The series skips around in time which is interesting, with the 3rd book being a pre-cursor to the others. The fourth goes back to the original time line.
