A soldier in a naval uniform entered, carrying a gas lamp in one hand and a flashlight in the other. The pitch-black captain's cabin was tinted with the warm glow of firelight.
He moved the gas lamp around, his gaze sweeping through the captain's cabin. Finding nothing unusual, he withdrew.
The warm light gradually receded along with his footsteps. Zhang Yuanqing released Night Roaming and looked again at the desk drawers. There were two drawers in the desk: one was secured with a brass lock, while the other had no lock.
After thinking for a moment, Zhang Yuanqing opened the unlocked drawer. Inside were telegram exchanges between the Petrel and the Irish United Nations Naval Headquarters.
What gave him a headache was that the telegrams were written in code, which Zhang Yuanqing could not understand.
Although the Spirit Realm had an automatic translation function—languages and writing would automatically be translated into one's familiar native tongue—codes were part of dungeon decryption and did not fall within the scope of automatic translation.
After pondering for a long while, Zhang Yuanqing used the Star Escape Art and dissolved into starlight.
A few minutes later, starlight rose once more in the dark captain's cabin. He had returned, now holding a code manual in his hand.
He had found it in the telegraph room.
In this era, telegram communications used codes, which were divided into "general codes" and "special codes." The former used the well-known Morse code.
The latter were mostly used in wartime and were temporary and self-created. Without a codebook, they were difficult to crack.
Although the Petrel was carrying out a secret mission, it was not wartime. No one would specifically intercept its telegrams, so Zhang Yuanqing guessed that the codes in the telegrams should be ordinary Morse code.
If they were