1, first of all, let's go to the cold nail, as shown in the figure below:

2. Then find three fire spirits and bring them back to the table, as shown in the following figure:

3. Then start the time-limited challenge, as shown in the following figure:

4. After the time-limited challenge, break the ice tree behind, as shown in the following figure:

5. After breaking the ice tree, click to start the cold nail and it will thaw, as shown in the following figure:

6. Then enter the unlocking animation, and the thawing is completed, as shown in the following figure: