West of the B1 church, almost on the same level as the B3 church, two communicating burial chambers were identified. Their entrance was, at the time of discovery, blocked with chalk boulders, as was the opening between them. On the walls of the outer chamber were incised numerous cruciform and geometric signs, human silhouettes, figures of horses, dogs, birds, "braided dragons" (some barely begun), two boots and runic graffiti.

Two other small churches, marked E 3 and E 5, are located in the southwestern part of the researched area. Of these, the small church (chapel) E3 is distinguished by an archaic plan, similar to that of the paleochristian basilicas with counter-apse. Its surface is 6 x 3.50 m, comprising altar, the naos, the pronaos (the narthex) and the exonarthexThe first was to the east and was shaped like an apse. On one side of the walls of the church were incised crosses, saints, orants, birds, a tree, the labyrinth and some runic graffiti.

The E5 church is to the east of E3, towards the interior of the chalk massif. It has an irregular quadrangular plan, with sides of about 3 m, and an average height of 2.20 m. The altar, facing east, is separated from the rest of the complex by a balustrade (cancelli), the upper part of which is no longer preserved. The E5 church communicates with E3 on the west, and to the north it has an exit to five galleries, which were used as a burial place. Its walls were also incised with crosses, fantastic animals, geometric signs and runic graffiti, as well as the image of a saint.

The six churches operated for a fairly short period of time, about half a century, but not simultaneously, but generally one after the other, the deterioration of one requiring the construction of another. Evidence in this regard is found in church B1, where the faint traces of smoking on the walls, as well as the slight dullness of the pavement and thresholds, show that it was not used for a long time.

The churches, dwellings, galleries and tombs discovered in the chalk massif are closely related to the quarry mentioned above, as they were carved into the massif by the workers who worked here. In the 10th century, chalk blocks were excavated from Murfatlar and used to raise the stone wall on the segment between the localities of Murfatlar and Valea Seacă. Through exploitation, on both sides of the “peninsula-massif”, basins with depths of 10 – 15 m were formed, which were later filled with waste resulting from the carving of the chalk. Obvious traces of this activity are preserved throughout the surveyed area, and they are easily visible today.

The cave monuments at Murfatlar represent a true source of information for monastic life, religious "architecture" and, why not, the ethnic structure of the population on the Istro-Pontic territory from the early Middle Ages. The plan and the internal division of some of the churches and some architectural elements show a strong Byzantine influence. The graphic representations incised in soft chalk and the inscriptions with various characters suggest here the existence of an ethnically mixed population, a fact specified by the written sources (Cedren, Attaleiates) for the Dobrogean centers from this period.