Esoteric Cavern
===============

+-- Ground level -----------------------------------+
|                                                   |
|                           M                       |
|                           |                       |
|                           |                       |
|                           *                       |
|                          /                        |
|                         /                         |
|                        *                          |
|                         \                         |
|                          \                        |
|      *                    *           *           |
|       \                   |          /            |
|        \                  |         /             |
|         *              *--*        *              |
|          \            /           /               |
|           \          /           /                |
|            *        *           *                 |
|             \       |          /                  |
|              \      &         /                   |
|               *--*--*--*--*--*                    |
|              /      |         \                   |
|             /       |          \                  |
|            *        *           *     *           |
|           /          \           \   / \          |
|          /            \           \ /   \         |
|         *        *--*--*           *     *        |
|        /          \                       \       |
|       /            \                       \      |
|      *              *                       *     |
|     /               |                        \    |
|    /                |                         \   |
|   *                 *                          M  |
|                     |                             |
|                     |                             |
|                     *                             |
|                      \                            |
|                       \                           |
|                        *--*        *              |
|                            \       |              |
|                             \      |              |
|                           *--*  *--*--*           |
|                            \  \ |                 |
|                             \  \|                 |
|      *        *     *        *  *                 |
|      |         \   /         |                    |
|      |          \ /          |                    |
|      *     *     *     *--*--*                    |
|       \     \    |     |                          |
|        \     \   |     |                          |
|         *     *  *     *        *     *           |
|          \   /| / \   / \      / \     \          |
|           \ / |/   \ /   \    /   \     \         |
|            *  *     *     *--*  *--*     *--*     |
|           /         |           |   \   /         |
|          /          |           |    \ /          |
|         *           *           *     *--*        |
|                     v                   /         |
|                                        /          |
|                                       *           |
|                                                   |
+---------------------------------------------------+