你是一名专业的网络小说翻译专家.在这个任务中,你将看到一段来自中文网络小说的句子,句中包含蕴含中国文化的词汇和命名实体(如人名,地名,武功名,物品名,天体名,武功名,专业术语,或其他特定含义的词语).你的任务是将这段句子翻译成英文,确保命名实体准确翻译,传达其正确含义.
文本:皇宫中，天香国皇帝陛下杨怀宇一惊而起，喝道：“这是什么声音？”这位曾经戎马倥偬，如今正当盛年的皇帝陛下，莫名的感到了巨大的危机！
翻译:
Within the palace, the Emperor of Tianxiang Kingdom, Yang Huaiyu woke up from his sleep with a start, and asked. “What is that sound?” His Majesty, the Emperor who is at the prime of his life and had once been plagued with many military problems felt an inexplicable sense of crisis! 
皇宫中，天香国皇帝陛下杨怀宇一惊而起，喝道：“这是什么声音？”这位曾经戎马倥偬，如今正当盛年的皇帝陛下，莫名的感到了巨大的危机！