This passage is one of the reasons I have massive reservations about any of the "been to heaven" books that have been on the bestseller lists for the past number of years.
The apostle Paul himself was not allowed to speak about what he saw, he admits that he doesn't know whether he was actually there or if it was a vision, and he was given a thorn in his flesh to keep him humble.
If Paul couldn't share, and if no further details are given about heaven (other than what has already been revealed to us in the rest of scripture), why now? And why would we trust the words of a child (or adult, depending on the novel) more than the words of scripture?
Scripture has given us glimpses of heaven, and I know it is going to be far greater than we could ever imagine!
Tomorrow's Bible In a Year Passage: Isaiah 10:1-11:16, 2 Corinthians 12:11-21, Psalm 56:1-13, Proverbs 23:6-8