So, my kindergarten-aged son loves these. Which is why I continue to read them, despite the lack of character growth and my inability to suspend reality (these kids are repeatedly in seriously dangerous situations but somehow manage to survive every time; apparently everyone around the world and in all time periods spoke English; and Jack and Annie are possibly the best secret keepers of all time - I know my son would be telling me all about that treehouse).

Will I keep reading the series? Yes, but only as long as my son wants to find out what Jack and Annie are up to.