Wall Piercing Railgun

Wall Piercing Railgun Author: mnuck Difficulty: Easy/Hard (short, but thick conceptually) Wall Piercing Railgun Once upon a midnight dreary, while I pondered, weak and weary, Over many a quaint and curious volume of forgotten lore, While I nodded, nearly napping, suddenly there came a tapping, As of someone gently rapping, rapping at my chamber door. …

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