Detailed explanation of the key function of the library in Underground Castle 3

There are a lot of game props in the game Underground Castle 3. Many players are still unclear about the specific function of the library key. So what is the use of the library key? Below, the editor will bring you a detailed explanation of the key functions of the library in Underground Castle 3. Friends who are interested should take a look.

Detailed explanation of the key function of the library in Underground Castle 3

1. First, the player needs to fight onceSecret Realm 1Copy, enter Unknown Castle.

2. After that, use the key of the library to go to the 33rd floor and get a Incomplete Formula and a Lottery Ticket.

3. To put it simply, you can get lottery ticket rewards.

4. In short, if players want to use the key to the library, they can use it in Secret Realm 1, and they can get lottery ticket rewards.

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