Complex sentence: Later, the Company also assisted the Lady in preventing her husband from escaping his prison (as recounted in "Shadows Linger"), but it was forced to flee her wrath when she discovered that it had unknowingly sheltered the reborn White Rose.
Split into simpler sentences: Later, the Company also assisted the Lady in preventing her husband from escaping his prison (as recounted in "Shadows Linger"). But it was forced to flee her wrath when she discovered that it had unknowingly sheltered the reborn White Rose.