I honestly didn't like the book. The only thing I understood was this girl and this Argonian get trapped on the Infernal City, which destroys everything and devours souls. Some prince comes to rescue them after a trip through Elsweyr. Then stuff happens and they escape, I think. I don't really know because everything that happens is so boring it's not even funny. Plus they kill a lot of Argonians. Argonians, to me, are very sacred.
A little spoiler-y don't you think, though it is kind of obvious. If you really care about the lore, get the book, if not, wait for the second one and read both. The cliffhanger is definitely that... a cliffhanger. I actually wasn't sure what happened and some of the characters were not even mentioned at the end, so anything could be happening.