AQUAE CALIDAE – THERMA (Tsonya Drazheva, Dimcho Momchilov – karnobat.muzey@mail.bg) The tepidarium and the apodyterium situated in the eastern part of the public baths were explored. The tepidarium was 8.20 m wide and over 28 m long. Its walls were constructed in opus mixtum and were 1 m wide, preserved up to 4.30 m in height. There was a pool, 7.70 m by 4 m in size and 1 m deep, situated in the northern part of the tepidarium. The hypocaust was explored. Eight terracotta tubes, 62 cm in height, were discovered. Part of the pavement of stone plates was preserved over the tubes. The exploration of the shaft situated in the northwestern part of the apodyterium continued. The shaft was connected with the water conduits for bringing the warm water from the mineral spring to the tepidarium and the apodyterium. The water conduits were built in 3rd century AD and reconstructed in the 6th century AD. The shaft had three construction periods. Sherds, glass and metal objects from the 3rd to 12th centuries were found inside the shaft. The apodyterium, 30 m long and 7.80 m wide, was explored. Two drains, 62 cm wide and 50 cm deep, were discovered. They were built of ashlars and uneven stones bonded with mortar and fragments from Greek inscriptions of the 2nd – 3rd centuries AD were used as spolia. The bottoms of the drains were paved with bricks and they were covered with stone slabs. The drains were connected with the shaft situated in the northwestern part of the apodyterium and their building was related to the reconstruction of the public baths in the 6th century AD. Three entrances were documented on the eastern wall of the building. An occupation layer of the 11th – 13th centuries was explored. There were traces of fire, probably related to the events of 1206 when Henry of Flanders, Emperor of the Latin Empire of Constantinople, set the settlement to fire. The finds included pottery, glass bracelets, Byzantine coins and Bulgarian and Latin imitations, a stone mold for producing jewelry and a bronze finger-ring with a seal showing a lion of the 13th century.