Haha - it's a PF2 adventure module, with rules to play as griffins, and using the optional cinematic chase rules. Was fun to run my team through, although they got a bit sidetracked with the undead guardian priests for a while.. https://copperaeon.itch.io/guardian-griffons-of-the-tower-of-the-dead
If you play it & enjoy it, let me know! Would love to get some feedback from other groups. Alternatively, if PF2 is not the thing, ping me with your system of preference and I'll see if I can translate the scenario for you :)