### 23

The instant you tap in the second code the portal begins to rise.7 You wait until it has risen a few feet and you are sure that no enemy awaits you on the other side, and then you duck under the heavy iron plate and hurry into the tunnel beyond. As you run, you hear the portal slamming shut behind you with a dull reverberating boom.

Turn to 115.

#### Footnotes

[7] This is the correct answer to the portal lock in Section 18 and Section 320.