Length of game

Would like to know if any one knows how long this game is? how many chapter's?
I played the free trial and got to two other time eras, but I am sure there is more to it than that....I don't see a walkthrough, so I can't tell, any one with knowledge please advise...Thank you..xo

Hi Underthebridge,

Oops, it looks like this thread was accidentally created twice! To keep everything together for you in one place, I'm going to lock this one up, but you can continue the conversation HERE.

Happy gaming!

-bfgHondo