Torchlit Hole
=============

+-- Ground level -----------------------------------+
|                                                   |
|                  *  *--*--*        *--*--*--*     |
|                   \    |              |           |
|                    \   |              |           |
|                     *  *           *--*           |
|                    / \ |           |  |           |
|                   /   \|           |  |           |
|            *     *     *           *  *           |
|             \   /                   \  \          |
|              \ /                     \  \         |
|               *        *     *  *     *  *        |
|               |         \   /  / \    |           |
|               |    <     \ /  /   \   |           |
|      *     *  *     *--*  *  *     *--*           |
|       \    |  |      \    |           |           |
|        \   |  |       \   |           |           |
|   *     *--*--*     *--*--*           *           |
|    \   /    \      /   |   \         / \          |
|     \ /      \    /    |    \       /   \         |
|      *        *  *     *     *  *  *     *     *  |
|     / \       | /             \ | /       \   /   |
|    /   \      |/               \|/         \ /    |
|   *     *     *--*--*           *           *     |
|               |      \          |          /      |
|               |       \         |         /       |
|               *        *        *        *        |
|              <                                    |
|                                                   |
+---------------------------------------------------+