Carl's skill that lets him read otherwise-hidden dungeon text — cookbook entries, mob signs, and secret messages.
Escape Plan is a skill of Carl's that lets him read text the dungeon otherwise hides — the same ability that lets him read the cookbook and the descriptive signs over mobs. On the tenth floor it activates unexpectedly 'in the wild' for the first time in a while when he handles a warm, crude gremlin note: beneath a mocking stick-figure drawing, the skill resolves a hidden second message from Akuma, secretly instructing Carl to kill two teams, visit his shop, and meet him about smuggling friends to the Pineapple Cabaret. The skill thus doubles as Carl's channel for covert communication he isn't meant to see.
An informational skill; its effect is Carl perceiving concealed dungeon text where others see none.
Carl's text-reading skill, here surfacing a hidden message from a hostile ally.
Also appears in books you've already read — spoiler-safe to their endings: