Anatomical Dissection Notes is a book in The Forgotten Sanctum.
“Curious specimen. Larger than the last one. The bones assume a different configuration whenever I look away, so an accurate accounting of its inner workings will prove no small challenge. The organs are knit together in a flexible mesh which maintains its spongy state despite decomposition.
The jaws can stretch open wider than they should allow. I cannot account for how this is possible, but my eyes don’t deceive me. The teeth elongate in proportion to how far apart the jaws are stretched - even in death.
I recommend the last of this species be interred in the Collections. Better to have it cataloged and disposed of than out and about.”