“现在？”贝贝吃惊地说道。
“对，就是现在。”悠悠解释道，“第一，现在外面刮风下雨，海浪很大，巴斯一定不会有太多的戒备；第二，你们前两天刚去过，而且被打退了，他一定以为你们受伤惨重，不会再来了。只要可以进到水晶宫，总会有办法救人的。”
听完了智的翻译，人鱼族长眼睛突然一亮，但是很快有暗了下来。他低下头说道，“巴斯把人鱼都关进了水晶宫的最深处，非常的隐秘，我们查了很久也不知道在哪里。听说那里没有巴斯钥匙，根本进不去。巴斯的武器很先进，遍布水晶宫的各个角落，如果一不小心触动了机关，就会有无数的利箭和渔网涌出，到那个时候，逃都来不及。想要进到水晶宫里面，实在太难了！”他说着转过身去，露出一片血肉模糊的后背给悠悠们看，说道，“我上次救人时触动了机关，海面立刻出来了很多鱼钩，我虽然已经很小心了，但还是被其中一个鱼钩勾住了皮，为了不被抓住，我是拼了命才游出来的，但是整块皮都被鱼钩扯掉了。”
“你们总是说巴斯的武器先进，都是什么武器，我们可以看看吗？”小兔妖义好奇地问道。
“当然可以。”一条人鱼说着，指了指远方的一条沉船，说道，“因为那些武器太危险了，我们把这些可怕的东西都放到了那里面。多年来，人鱼族一直受追捕，我们不停地搬家，也把这些危险的武器都放到了一起，避免我们的族人碰到。”
悠悠和小伙伴们来到沉船里，发现那里除了各式各样的渔网，鱼钩，鱼箭，鱼雷以外，并没有什么真正“厉害”的武器。
悠悠暗自琢磨，觉得这是因为巴斯的主要袭击对象是鱼类，所以武器也都是针对鱼类的。可是这些武器对于来自人类世界的悠悠来说，实在算不上什么“厉害武器”。
悠悠刚要转身离开，就听到勇说道，“这是我的，我先找到的。”
义不相让，说道，“是我的，我先看到的！”
“这是什么？”仁走了过去，好奇地问道，“长的这么奇怪？”
“不知道。”智仔细地看了看，摇了摇头，说道，“古书上没有记载。”
“小心！”人鱼族长惊恐地把那个东西扔得远远地，伴随着“铃、铃”的落地声，族长说道，“你们别动这个！如果我们没猜错的话，这应该是渔人们用来捕鱼用的武器。”
悠悠不知道他们在说什么，但对于铃声可以在海水里发出这么响亮的声音也很好奇。他走那“武器”前面一看，不禁笑了出来，原来那只是一个婴儿用的玩具，塑料的五角星的形状上面绑着几个小铃铛。
可是普通玩具的铃铛一旦掉到水里，不应该声音这么大呀？
也许是海水的问题？
悠悠一边琢磨，一边在人鱼惊恐的眼神中，微笑着弯腰把玩具捡了起来，拿在手里晃了晃，铃铛顿时发出清脆的声音。
他刚想解释这个东西的用途，一回头发现身边除了小灵妖们，人鱼们都不见了？！
“他们一听到铃声，就都躲起来了。”勇呆呆地说道。他不明白为什么连他都不害怕的东西，人鱼为什会这么害怕。
“你们别怕，这不是武器。”悠悠大声说道，“在人类世界，只是给小婴儿玩的玩具。”
人鱼们听说不是武器，不会伤人，慢慢探出了头。
“既然不是武器，为什么上面有这个？”贝贝紧张地指了指玩具上的铃铛。
“这是铃铛，有这个就可以吸引小孩子的注意力呀。”悠悠觉得贝贝的问题好有意思，问道，“你很害怕铃铛吗？”
贝贝看着铃铛，重重地点了点头，说道，“这个声音太可怕了。”
铃铛，玩具，武器，人鱼……？！
突然，悠悠想到了一个拯救人鱼的好主意！
******************************
“Right now?” Bella asked in hopeful voice.
“Yes.” Yoyo said，“right now it is a nightmare outside so Buzz won’t know that we’re coming very quickly. Secondly， you have already been there recently and Buzz would think that you were hurt greatly in battle so he would not be prepared for an ambush. Besides， there would always an idea if we are going to help people when we get there.”
After Zhi’s translation， the mayor’s face lit up. But dropped his head after. He said，“the mermaids are kept under the water very deep below to Crystal palace. You can’t go inside the secret room unless you have the key that only Buzz has. Besides， the weapons there are very powerful. There are so many hidden traps that if you touch one， there would have fish nets and harpoons ambushing you. Going to the Crystal palace is way too hard.” He showed Yoyo his back and said，“When I was rescuing a mermaid， I triggered a trap and fish hooks go me good. To escape， I swam with all my might and eventually got out. But the hook got a part of my back skin.”
“You are always saying how powerful Buzz’s weapons are. May we see some of them if they are available?” Yi asked very curiously.
“Sure you can!” a mermaid said. He pointed to a shipwreck outside the cavern and he said “the weapons are so powerful that we need to put it all inside the ship wreck. We also try to avoid kids to go to the ship wreck to avoid injuries or even death. For thousands of years， the mermaid species were attacked constantly due to the value we contain. We have to keep on moving shelters to avoid being attacked.”
Yoyo went into the ship wreck and found the regular， fish nets， fish hooks， harpoons and water bomb. Apart from that， there was nothing ‘very dangerous’ weapons.
Yoyo thought for a moment. He realized that buzz only likes to catch fish so these weapons would only be used for fish. However， if the weapons were used on land， it wouldn’t cause much of a threat.
Yoyo was about to leave when he heard Yong yell，“This is mine! I found it first.”
Yi then got in the argument，“No it is mine!”
“What is it?” Ren swam into where Yi and Yong were and said，“it looks so weird.”
“I don’t know.” Zhi said as he shook his head.“There have been no recounts.”
“Be aware of what you are doing!” The mermaid mayor said as he snatched up the thing from Yi’s paws and threw it furiously far away in the distance.‘Clink， clink’ as it went when it hit the ground.“Don’t touch that! That is some powerful weapon that the fishermen use to catch fish.”
Yoyo did not know what they were talking about. He had no clue what terrified the mermaids so bad. However， when he took a glimpse of the ‘weapon’ he nearly laughed his head off. It was… a baby toy shaped of a sea star with bells on the end.
But in the sea the sound would not be that loud.
Is it the sea’s problem?
Yoyo was thinking while all the mermaids we looking at him with pale faces. He slowly picked up the toy with a smile and shook it mildly. The noise was suddenly ‘DINGDINGDING!’
Yoyo was about to explain that it wasn’t dangerous but when he turned around， there was no one in sight apart from the demons.
“I think that the bells scared the mermaids.” Yong said in a confused way. He just couldn’t understand that something that even he was not scared of was the mermaids’ worst nightmare.
“DON’T BE SCARED” Yoyo shouted.“IT IS JUST A TOY THAT BABIES PLAY WITH THE HUMAN WORLD.”
After the speech， the mermaids slowly poked their heads out of their hiding places.
“If it isn’t a weapon， then what is the bell there for?” Bella nervously pointed at the bell on the top of the baby toy.
“The reason there is a bell is because it is there to attract babies.” Yoyo explained. He then asked，“Bella， are you scared of bells?”
Bella nodded swiftly and said，“These bells are way too scary.”
Bells， Toys， Weapons， mermaids?!
Suddenly， Yoyo had a plan to save the mermaids!