If you want to save Laurie do this:
Go right instead of left, fight the creature with 6 legs but choose to overcome it's power
During your fight with him hesitate (you will be fine because of the fight from earlier)
Choose to destroy the weapon he is building instead of attacking him directly because he looks vulnerable
Having 28 skill or higher helps meeting the requirements to save Laurie
With this you should be able to save Laurie, I hope I've helped you