Breaching the Cedar Vault

I shoved my shoulder against that propped wooden lid and wriggled right into the slit! Inside the cavernous pine depths lay an ancient spool of red builder's twine, coated in sweet cedar dust. True dungeon delve material! Gripping the frayed crimson string with both hands, I unspooled a long, sinewy coil, tied a rugged loop around a splintered timber strut, and kicked the rest down like an exploration lifeline. Peering into the shadowy interior, the real descent has begun!