About Decidable

Home of X Marks the Spot, by Brian Thomas

The decision's yours. That's why it's Decidable.

In most books, the writer decides what happens. In these books, you do. You choose which way to go, and every choice takes the story somewhere new.

Pay attention as you read. Some paths only open if you remember a clue from earlier. Pick well, and you find the treasure.

Every book comes in an Easy or Hard edition, so you can pick the level that suits you.

Decidable is a Brian Thomas series site. To read more about the author, visit brianthomas.ink.