I can't find the glowstones needed (how many do i need to find) and 2nd and 3rd tablet?
Plese help, i keep finding i have to go to the library to get air or else ......
Any spoiler walkthrough?

Follow the link in my signature to find where at least one player found glowstones (they are not ALWAYS in the same spot, but often enough to help)
Xignal has been doing some walkthrus for each section. I cannot recall if he has done Colliseum yet. Check for Xignal's threads - he has a link to his site for his walkthrus, or go to Ironworks W&W page - there are links there as well.

Wyv