The situation across the battlefield was indeed just as Liu Changxu had surmised. The fierce attacks of the three fourth-tier sea monsters consumed far too much of the City-Defense Grand Formation's energy, greatly weakening its defenses.
By now, the spells and divine abilities of the third-tier sea monsters could already breach the formation's curtain of light.
Although the curtain of light greatly weakened the spell radiance that penetrated it, leaving it unable to threaten Golden Core cultivators like Liu Changxu, it was a terrible calamity for the Qi Refinement cultivators defending the city!
From time to time, a Qi Refinement defender was struck and killed by spell radiance that pierced into the city. Cries of agony rose on all sides!
Even the once exceedingly sturdy city walls had been damaged in several places, and the defenders' morale had fallen considerably.
While fighting the third-tier sea monsters outside the city, Liu Changxu and Lin Feiyang also directed the Foundation Establishment defenders to carry the wounded and the bodies of the fallen down from the walls to be tended to. They were kept frantically busy.
What gave them the greatest headache, however, was still the third-tier sea monsters outside the city. After a fierce struggle, they discovered that these sea monsters were extremely cunning, retreating whenever they were outmatched or injured.
Just like the third-tier sea monsters Liu Changxu had driven off, they withdrew as soon as the tide turned against them, leaving another third-tier sea monster to take their place. This was clearly a revolving-door battle of attrition. Unless one could kill them quickly, an endless succession of opponents awaited. This placed tremendous pressure on Many-Treasure City's defenders.
After night fell, Lin Feiyang, the Golden Core sword cultivator who had been defending the walls alongside Liu Changxu, went down to rest.