Hiding is not enough: in both traditions the primal book is assigned a DEATHLESS GUARDIAN — a pair of appointed angels, an eternal serpent — and in both the deposit sits with respect to water (preserved through the flood / sunk beneath the river) rather than destroyed by it. The guardian never reads or takes the book; it only keeps it. Feeds the archive's serpent thread and canon finding 9 (the serpent examines and departs, never takes).
God, planning the flood, assigns Enoch's 360 books a standing guard: 'I have commanded my angels, Ariukh and Pariukh, whom I have appointed on the earth as their guardians... so that they might preserve them so that they might not perish in the future flood.'
The book Thoth 'wrote with his own hand' lies underwater at Coptos in six nested boxes (iron, copper, juniper, ivory-and-ebony, silver, gold), ringed by 'six miles of serpents,' and 'there is an eternal serpent around this same box.'
2 Enoch 33 quote verified at Marquette maqom edition (PD alternative: Morfill 1896); Setne nested-box and eternal-serpent passage verified at attalus.org (Lichtheim; PD alternative Griffith 1900).
Our fact-checkers corrected the first draft:
Eighteen centuries apart, the identical engineering claim: the primal record was written on media deliberately hardened against the same two named destroyers, water and fire · and both authors insist the artifact is still physically extant and inspectable ('remains...
The antediluvian record is not handed down · it is FOUND, by a lone discoverer, in a sealed or forbidden place, and transcribed in secrecy.
Same skeleton with no shared geography: humanity's crime is an affront to the senior god's comfort or dignity, a council formalizes extermination, the killing is halted mid-course by subversion within the pantheon itself, a remnant survives, and the wearied god afterward binds or removes himself.
The serpent as impounder of water: in both, the serpent takes the waters into its own keeping (encompassed under Vritra's bulk / swallowed into the Bakhu serpent's body), the world's motion stalls (the rivers penned like cattle / the solar barque standing still), and an armed god compels restitution · the waters are given back in full and flow resumes.