How to do the Adventure Island ghost captain mission?

First of all, I found Bart in the northeast corner of Notres Wharf and accepted the task of "meeting Grandpa Seagull". Grandpa seagull is in the house next to the instructor. This task is divided into three stages. Click grandpa seagull's dialogue, and then give you a task, 2-digit addition. Continuing the conversation will send you to another room to find Bart. There are nine Barthes in one room. Using physical attacks, the system will prompt you to pass when you find the real one. This task first points to the original task. The original task has the image of Bart, and the contrast is the same. The difference is mainly in the eyes and eyebrows. The real Bart is an inverted eyebrow. In the third stage, click Grandpa Seagull to enter a map similar to the family task 1 stage, in which a stone statue NPC clicks on him, and there are 4 figures and 2 bull heads distributed in the map. At the time of 1, four lights are lit first, five lights are lit for the second time, and six lights are lit for the third time. Standing in the middle, you can see all the stone statues and mark them. From left to right, it can be recorded as 1, 2 cows, 3 cows, 4 cows, 5 cows and 6 people. After each light comes on, tap it in turn and the system will prompt you to pass. Grandpa seagull will give you this skill when he goes out! Finally, I wish you success ~ you really have the ability to rise to 130 ~ I'm only the 80 th mate ~ I've been a boxer for 2 days and now I've risen to 58 th ~!