Telescope Jim by J. S. Lome

If you could become a pirate would you? What if trusting just one old buccaneer made you one for life? That’s what happens when Miles the Mutineer ‘follows his heart’ like his mother wanted after he ran away from home.

The only problem is, following his heart is complicated. Especially when all he wants is to steal a secret map from an escaped convict that half the world is looking for.

Oh, and the map may lead to an old fortress under the earth with enough traps to kill the best buccaneer’s alive.