Continue forward through the cave, then turn right at the second wall. Push the block at the wall as far as it goes, then go around the corner to get another Rose. Return down the passage, then stop at the next hall. Walk down the passage, then a cut-scene will show that the floor is breaking away. Do a running jump to clear the lava below. Back off and hang from the edge, shimmy to the left then go through the crawlspace. Flip forward to the other side, then press a button on the wall to open a door back in the previous room. Climb back up and crawl through. Shimmy to the right then pull up to the ledge. A door is now open, allowing you to slide into the next room. Get ready for action as soon as you reach the ground. A lion attacks, so take out your pistols and kill it. Locate and press the button on the wall to open the exit. Another lion attacks, so take out your pistols and kill it. Enter the next room, then climb the wall ladder until you reach the top. Backflip with a twist then take the Gemstone piece from the pedestal. Enter the next room, then kill a Gladiator from the left with your pistols. Go to the room where he came from, then pick up the small medkit. Follow the ramp leading up to another level, then kill another Gladiator with your pistols. Go in the room where he came from, then take the uzi clips and push a button on the wall. Continue up the next ramp to the top then kill a lion and a Gladiator with your pistols. Go to the back of the room where they came from, then take the uzi gun and a large medkit. Head back down the ramp, then enter the room to your right. Your goal here is to collect the second piece of the Gemstone by navigating a tricky puzzle that is on a timer. Go to the middle of the road then do a running jump toward the left platform. Face the room and stand by the rope. Pull the rope three times to raise a pedestal on the central platform, now do a running jump to the ledge in the far right corner below. Run through the small opening to reach the next block. Jump up then pull up. Run to the top with a running jump and a grab. Pull up then stick to the left. Do a running jump over the pit, then pull up to reach the central platform. Take the Gemstone from the pedestal before it goes down. You can now exit the cave through the door on the right, a trapdoor opens sending you down with a cut-scene. After the encounter, go through the right doorway then go all the way up to the central platform. Go through the door where you fell through, but do a running jump with a grab to enter the next room. Take the Rose then jump to the slope, grab the edge then do a safety drop to the room below. Go toward the left door, it opens as you head up the ramp. Combine the two pieces of the Gemstone in your inventory then insert it in the slot. As the floor starts to break away, do a roll followed by a running jump to the stable ledge on the other side of the room. Turn around then do running jump to the opening in the wall. Back off the ledge and hang, now shimmy to the left until you stopped. Drop to the floor then exit through the door. Use the block to reach the room above, then whip out your pistols to take care of another Gladiator and a lion. Light a flare. A quick search of the room gets you the Colloseum key which you can use to open the large doors. Saving your game would be a good idea, because the Thor Gladiator is very strong. Shoot him with all your weapons. When he's destroyed, the exit will be revealed on the wall. In the next room you will find a table with another Colloseum key, take it. Return to the previous room, then use the key to unlock the second door. Slide down to the cave, but ignore the tempting treasure for now. Do a running jump across the first ledge, then do another running jump with a grab to reach the crawlspace. Light a flare, then crawl through the passage to find another Rose. Take it then retrace your path back across the ledges to the Philospher Stone. Pry it from the wall with your crowbar to end your adventures in Rome.