One of the early puzzles you'll receive you'll need to solve in order to get a key to a mansion and find a sword inside in order to progress your adventure. It is a simple puzzle involving crossed wires. You follow from a number at the top, down the wire, crossing across any connections, and then finding the one that leads to the fish on the second hook. It's not too tough to solve, but in case it's got you puzzled, the solution is number 4.