In a world where some criminals are too large or powerful to be contained in a normal prison, Equestria's top minds are working hard on technology to keep them contained.

Gilda the griffon is perhaps the most large and powerful individual in the land, her godlike feats of growth and strength unparalleled. There's no one better to give the new prison a thorough test.

Includes: impossible powers, very curvy hyper futa Gilda, growth (including growth to macro size), super strength, hyper density, ass/cock/balls/breast expansion, multicock/balls, and cloning.

Cover art by jupiter_jyohti used without permission, will remove upon request.