Thanks Masamune! The box in the ship's cabin stayed broken for a whole hour, so after one traveller opened it nobody else on that sailing (or the next few) could. It now comes back on every sailing, and it always gives the Maple History Book while you're on the quest. Fixed in today's update.

Thanks for sticking with this one, Masamune — you were right, it was still broken. The cabin box (and the Magic Library box) could look like it broke but quietly not count your hits, so it vanished without dropping anything and then stayed gone for a long while. That's fixed now: if it happens, the box pops right back up so you can finish breaking it, and the server counts your swings properly, so Maple History Book I drops for you while you're on the quest. Please refresh the game, then hop on the boat to Orbis and break the box in the cabin. Let us know if it still gives you trouble!