The author gave up struggling and decided to keep updating their own material; all else is unrelated...
After seeing the silver-blue light, Guan Yu immediately ordered a fast rider to hurry to the border of Qingzhou and asked Taishi Ci to come quickly. This was a precaution arranged by Chen Xi beforehand.
To be honest, it wasn't that Chen Xi didn't want to stealthily transport the twenty thousand troops to Jizhou, but he simply lacked the capability to do so. Even Guan Yu and Zhang Fei's one thousand trusted aides had to enter in several groups disguised as merchants. To think of sneaking twenty thousand troops across the border was nothing short of a joke; even if they invoked fog and rain, the commotion would be too great.