▁having ▁engaged ▁Russian ▁forces . ▁Another ▁swe ep ▁followed ▁on ▁ 2 7 – 2 9 ▁December , ▁this ▁time ▁to ▁cover ▁a ▁sortie ▁by ▁the ▁ ▁of ▁the ▁V ▁Battle ▁Squadron ▁toward ▁Got land . ▁On ▁ 6 ▁January ▁ 1 9 1 5 , ▁Prin z ▁Ad al bert , ▁Th et is , ▁A ugs burg , ▁Lü beck , ▁and ▁several ▁tor ped o ▁boats ▁and ▁U - bo ats ▁went ▁on ▁a ▁pat rol ▁toward ▁Ut ö , ▁where ▁they ▁discovered ▁a ▁Russian ▁base ▁for ▁sub mar ines . ▁The ▁Germ ans ▁planned ▁to ▁attack ▁the ▁base ▁with ▁the ▁tor ped o ▁boats ▁and ▁Th et is , ▁since ▁she ▁had ▁the ▁shall ow est ▁draft , ▁but ▁due ▁to ▁a ▁mis communic ation , ▁the ▁attack ▁was ▁not ▁carried ▁out . ▁ ▁On ▁ 2 2 ▁January ▁ 1 9 1 5 , ▁Prin z ▁Ad al bert , ▁in ▁company ▁with ▁A ugs burg ▁and ▁several ▁tor ped o ▁boats , ▁conducted ▁another ▁reconna issance ▁swe ep ▁toward ▁the ▁Å land ▁Islands . ▁While ▁on ▁the ▁return ▁voyage , ▁she ▁bomb arded ▁Russian ▁positions ▁at ▁Lib au . ▁She ▁ran ▁a ground ▁off ▁Stein ort ▁during ▁the ▁operation , ▁and ▁A ugs burg ▁struck ▁a ▁mine ▁off ▁Born holm . ▁After ▁being ▁fre ed ▁from ▁her ▁ground ing , ▁the ▁ship ▁was ▁rep a ired ; ▁Mich elsen ▁tempor arily ▁served ▁as ▁the ▁det achment ▁commander ▁in ▁place ▁of ▁Be hr ing ▁from ▁ 1 3