Overview
- The Severed Hand, found after the basement sequence, can be scanned at Blood Analysis microscopes in the Blood Lab or the Office to reveal a “Let’s play.” message plus a long nucleotide-style code.
- VGC reports that scanning the hand also activates a previously opened puzzle box to accept inputs via Sun, Star, and Moon buttons, confirming the item’s role in the wider challenge.
- PC Gamer documents in-game clues that appear to map Moon to U, Star to C, and Sun to G based on distance references, though the overall decoding remains unresolved.
- PC Gamer lists the resulting sequence as an mRNA-like chain and notes an amino‑acid interpretation as a possibility, while emphasizing that no final solution has been verified.
- Guides advise acting during a brief window while playing as Grace before leaving the Care Center and recommend keeping multiple save slots given the puzzle’s length and uncertainty.