"Tenacious human, this king is the younger brother of the troll king Trandel, the troll chief Hulkdel, there must be many humans in your village, this king can't wait to eat!" Zhang Qiuhan opened the envelope directly, and then saw the crooked war letter written in this font.

"Level 5 Warbook Boss Troll Chief Hulk Del?" Zhang Qiuhan couldn't help but have a headache, it was unlucky enough to meet the battle book boss when he was level 3, but he didn't expect to meet the level 5 war book boss who was 2 levels ahead of his village.

Well, don't ask Zhang Qiuhan how he knows that this battle book BOSS is level 5, because the payment place reads: "Level 5 BOSS Hulk Del"

According to Zhang Qiuhan's understanding, the strength of the level 5 battle book boss is almost the same as the strength of the 300th wave of Yuankou, in other words, Zhang Qiuhan has to meet the attack equivalent to the 300th wave of Yuankou in advance.

And just a first-level repeater arrow tower, no matter what, it is impossible to repel the 300th wave of Yuankou.

"It seems that there is only one way to do it now, and that is to use the remaining two mana first, so as to build a second defense tower first...... But I'm afraid this is not enough, and the crossbow arrow tower must be upgraded, at least to level 2! ”

"It would be nice if this boss could come over within the 24-hour limit, so that I could be promoted to level 5, go to the Ark of Tomorrow, and buy the resources to build a machine gun tower by smashing pots and selling iron!"

Zhang Qiuhan quickly calculated in his heart, he will come as soon as he wants to come to the boss of the battle book, Zhang Qiuhan is not completely powerless, as long as he can build two more 1-fee defense towers above the purple level, or 2-fee defense towers above the blue level, and then upgrade the crossbow arrow tower to level 2, Zhang Qiuhan feels that he is sure to hold this wave.

In this way, the BOSS of the battle book has become a boy of scattered wealth, which can allow Zhang Qiuhan's small village to get through the early stage at a faster speed and develop rapidly.

So the key now is how to get two high-level defense tower blueprints, and how to enter the library to improve your skill level.

There is only one way for players to improve their skill level, and that is to go to their respective skill buildings to upgrade to the skills.

Among them, players of the Oriental Xianxia Department have to look for various immortal cultivation sect buildings on the map, such as the Taiyi Sect stronghold, Shushan Sect Martial Arts Hall and other buildings, and go inside to learn skills.

Players in the Western fantasy system need to find the various combat academies on the map, which also have sufficient skills for players to train.

As for the science and technology players, you will have to look for the various libraries on the map.

Zhang Qiuhan also took this into account when choosing the location for the construction of the village, and there happened to be a library building nearby. Although this library is only a low-level county-level library, it can only learn low-level skills, but it is enough for Zhang Qiuhan to use now.

However, there are a large number of Yuan Kou entrenched in this library, which is about the same number as the number of Yuan Kou at a low-level resource point, and the current Lan Yu is definitely not an opponent.

So at present, Zhang Qiuhan's response is very obvious.

Farm the stronghold!

Continue to frantically farm the stronghold, brush out the defense tower blueprints, brush out the level of the blue jade, and before the arrival of the battle book boss, brush out a piece of the sky.

As a result, the strongholds near Mars Village were unlucky, Zhang Qiuhan once again entered the advent mode, controlling Lan Yu's crazy big brush, and the surrounding strongholds of level 5 and below were not able to survive 5 minutes, and all of them died tragically in the hands of Zhang Qiuhan, turning into Zhang Qiuhan's various resources, as well as Lan Yu's experience points.

But what made Zhang Qiuhan feel a headache was that his luck today seemed to be really Africa to the extreme, and he brushed for nearly three hours, but in addition to a lot of resources, although there were also a lot of defense tower drawings dropped, all of them were white and green low-level drawings, Zhang Qiuhan counted it, and dropped 20 white drawings and 5 green drawings, but there was not a single blue drawing, and Zhang Qiuhan was about to vomit blood.

However, this did not dampen Old Man Zhang's patience, Old Man Zhang was still frantically brushing, and even the wandering Yuan Kou in his own village had accumulated to the full value, and he began to automatically attack the village, and Old Man Zhang didn't care.

Anyway, the defense of the village is also automatic, whether Zhang Qiuhan is there or not is the same appearance, God knows when the battle book boss will be refreshed, Zhang Qiuhan is better to level up and brush the drawings as soon as possible.

Then this brush, it took another 3 hours, even Zhang Qiuhan, he felt that the muscles of his body began to ache badly.

No way, Zhang Qiuhan is not a god after all, his body is still human, after a hard battle of 9 hours of advent mode, Zhang Qiuhan's physical strength has inevitably reached the limit, and if he continues to toss like this, Zhang Qiuhan may be directly exhausted to death.

Frustratingly, the fallen tower blueprints are still various white and green, and there are no blue tower blueprints.

"That's it, after brushing the last stronghold, Lan Yu can be upgraded to level 3, and I'll go back to rest......" Zhang Qiuhan shook his head, he can't help but measure himself, since he can't brush up on satisfactory drawings, then use it like this first, maybe the level 1 crossbow arrow tower, with some green defense towers, will be able to defend against the boss's attack.

As for taking the library and going in and learning skills...... With only a third-level blue jade, I'm afraid it's still ...... I'm afraid there may still be a chance!

Well, although it is not a good habit to lie to yourself, it can really make people feel better.

Old Man Zhang, who was in a better mood, finally used a beautiful spear flower to kill the last Yuan Kou in the level 5 stronghold, and at the same time, a small treasure chest fell out.

I don't know how many treasure chests like this have dropped, and it is already difficult to arouse Old Man Zhang's interest, but no matter how small the mosquito is, it is still meat, and it is impossible for Zhang Qiuhan to give up this treasure chest, right?

Zhang Qiuhan absentmindedly opened the treasure chest, and then his throat clicked instantly, because what was placed in this treasure chest was actually a card, and it was a card with a flashing blue light.

"A blue Immortal card!" Zhang Qiuhan was shocked, he had dropped countless defense tower drawings before, but none of the Heroic Spirit cards had been dropped, Zhang Qiuhan thought that the level 5 stronghold would not drop the Heroic Spirit Card at all, but he didn't expect this time, so he directly gave himself a blue Heroic Spirit card.

"Which Heroic Spirit is this?" Zhang Qiuhan picked up the card with curiosity, and then saw the name on the card.

"Sniper King Zhang Fang"