hole up
• take refuge in a place to avoid detection or distraction.
• "I holed up for two days in a tiny cottage in Snowdonia"
Similar:
hide,
hide out,
hide oneself,
conceal oneself,
secrete oneself,
shelter,
take cover,
lie low,
go to ground,
go to earth,
go underground,
lie doggo,
Opposite:
come out into the open,