A Twisting Mountain Ledge
=========================

+-- Ground level --------------------------+
|                                          |
|                  *--*--*--*              |
|                 /          \             |
|                /            \            |
|               *              *           |
|              /                \          |
|             /                  \         |
|         *--*                    *        |
|        /                         \       |
|       /                           \      |
|      *                    %        *     |
|     /                     |v      /      |
|    /                      |      /       |
|   *                    *--*     *        |
|    \                  /        /         |
|     \                /        /          |
|      *              *        *           |
|       \            /        /            |
|        \          /        /             |
|         *        *--*>-*--*              |
|          \                               |
|           \                              |
|            *                             |
|             \                            |
|              \                           |
|               *                          |
|                \                         |
|                 \                        |
|                  *                       |
|                  |                       |
|                  |                       |
|                  *                       |
|                  v                       |
|                                          |
+------------------------------------------+

+-- Level -1 ------------------------------+
|                           ^              |
|                           %              |
|                           v              |
|                                          |
+------------------------------------------+

+-- Level -2 ------------------------------+
|                                          |
|                                 M        |
|                                 |        |
|                                 |        |
|                     *           *        |
|                     |           |        |
|                     |           |        |
|                     *           *--*--*  |
|                      \         /         |
|                       \       /          |
|                        *     *           |
|                         \   /            |
|                          \ /             |
|                           *--*           |
|                             /            |
|                            /             |
|                           *              |
|                           |              |
|                           |^             |
|                           %              |
|                                          |
+------------------------------------------+