I have been through the first dwarven cavern and the rooms on the screen to the right. Including the lightning room. How do I get to the next rooms from these 2? I already have the first badge from the first cavern. Thanks, jack

Does that mean you've found the stairs in the lightning room, or is that what you're looking for? If you're looking for the stairs, the best advice is to examine the details on the floor. If you go back out of that room and examing the 'board room' you'll eventually put 2 and 2 together.