SANJIESAN LORE / Reader understanding
Show a small use before a power solves the escape
A solution can feel arbitrary when readers first hear of its mechanism at the instant it saves everyone. Sanderson connects magical problem-solving with reader understanding in his First Law essay. One way to apply that optional principle is to prepare a small, ordinary use of the same mechanism.
Name exactly what the final action needs
Imagine an original scene where a character escapes a locked storeroom by carrying a faint sound through a marked wall. Decide which part matters: transmitting sound, marking a surface or recognising a receiver. Do not call the ability communication if the ending suddenly allows it to open locks as well. Write the final action in two sentences, including what remains impossible, before you plan the earlier scene.
Put the mechanism inside another task
Earlier, let the same character use the marked surface to ask whether a workshop is open. Give that scene its own purpose: a missed appointment, an unwanted favour or a misunderstanding. Readers can see the sound arrive and notice the need for a prepared mark. They do not need a lecture about every possible application. Keep the demonstration visible enough to recall, while letting dialogue and consequence carry the scene forward.
Check recognition without predicting the whole ending
Read only the early demonstration and the escape. Ask a willing reader what feature made the escape possible, rather than whether the magic was cool. If they identify a new ability that the demonstration never showed, revise the connection. If the entire ending is obvious too soon, change the characters’ obstacles rather than hiding the necessary premise. Understanding a tool does not require knowing when someone will choose to use it.