Black Cave
==========

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

+-- Level -1 ---------------------------------------------------------------------------+
|                                    ^                                                  |
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|                                    *--*--*                                            |
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|                                            <*                                         |
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|                                                *                                      |
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|                                                |^                                     |
|                                                %                                      |
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+---------------------------------------------------------------------------------------+