Mahabharata 5.8.21

अज्ञातवासं घोरं च वसता दुष्करं कृतम्दुःखमेव कुतः सौख्यं राज्यभ्रष्टस्य भारत

ajñātavāsaṃ ghoraṃ ca vasatā duṣkaraṃ kṛtamduḥkhameva kutaḥ saukhyaṃ rājyabhraṣṭasya bhārata

Our plain-language meaning of this verse is waiting for scholar review.