41
Your search of the cave turns up nothing of interest and so you decide to return to the junction to continue with your quest. As you are exiting you feel a tug beneath the water followed by a powerful suction that threatens to pull you under. By a freak accident you have kicked aside a rock that was keeping a sinkhole stable.
Make a L1SR on LK. If you make the SR, go to 7. If you miss the SR, go to 36.