Question: who is lost to the expedition while they are in drepanum

title: Battle of Drepana
text: In the harbour , the Carthaginians did not wait to see what the Romans intended . Adherbal had similar , though less controversial , quick thoughts and ordered the evacuation of Drepana before the blockade was unavoidable . Carthage 's ships thus sailed out of Drepana , passing south of the city and around two small islands in the coast to the open sea . Seeing his plan for a surprise attack fail , Pulcher ordered his fleet to regroup into battle formation . However , by then , everything was against him . The coast of Sicily was at his back and the Punic fleet ready for battle at his front .