>>6672
>>6671
Where I started down this path of "how do hippogryphs get made" and how it overlaps with seaponies, is in FoE_Proj-Horizons.
Security is incapacitated, and comes-to in a bathtub of sorts. Twin mare seaponies, converted into twins, and seaponies, at the same time, via Killing Joke curse, introduce themselves to the security mare in the worst possible way -- and almost get blown away. Except Go Fish is experiencing magical exhaustion, and can't put holes in their skulls before they apologize for their lack of diplomacy and indroduce themselves properly.
...but hang me if I could find a picture of those twins ANYWHERE.