DEULTUM (Krasimira Kostova – kr.kostova@mail.bg, Elka Docheva, Maria Manolova–Voikova) The trench was widened with 250 sq. m. It was reconfirmed that the baths were burned during the first half of the 5th century AD. A hypocaust with terracotta and stone-built small columns was discovered. Fragments of mortar plasters with grey and white tesserae, marble fragments of cornices and wall facings were found. Probably the floor was covered with mosaics and there was a marble plinth, while the plaster of the wall above it was painted in red. An air duct built of bricks, probably connected with the prefurnium, was discovered. During the second half of the 5th century AD, a fortification wall of ashlars bonded with mortar was built over the air duct and the hypocaust, and storage rooms connected with the fortification wall were constructed over the ruins of the baths. In the beginning of the reign of Justinian I, the storage rooms were reconstructed after a fire. Eight dolia in situ, amphorae, pottery, terracotta lamps, tools, jewellery and a bronze stamp for stamping breads, with a Greek inscription that reads: MAPTYPI, were found. The occupation stratum of the 6th century AD was covered by the roofing construction, which had collapsed during the fire. The fire is dated by coins of Justin II and probably is result of the invasions of Slavs and Avars at the end of the 6th and beginning of the 7th centuries AD. Houses with foundations of stones bonded with mud were built over the remains of the fire. Sunken-floored houses, partly dug into the ground, were constructed on the site during the first half of the 9th century AD. An occupation stratum was discovered in the southern room No. 1 of the baths. The stratum comes from the period before the room was partitioned and dates to the 2nd century AD, according to the pottery (a terracotta lamp with stamp [АТІ]МЕТІ and red-gloss dishes). The wall in the western part of the room, which is connected with the southern wall of a tepidarium, is related to the stratum.