November had been partially successful, but a larger-scale operation was devised by Admiral Franz von Hipper afterwards. The fast battlecruisers would actually conduct the bombardment while the entire High Seas Fleet was to station itself east of Dogger Bank to provide cover for their return and to destroy any elements of the Royal Navy that responded to the raid. But what the Germans did not know was that the British were reading the German naval codes and were planning to catch the raiding force on its return journey, although they were not aware that the High Seas Fleet would be at sea as well. Admiral Beatty's 1st BCS, now reduced to four ships, including Lion, as well as Vice-Admiral Sir George Warrender's 2nd Battle Squadron with six dreadnoughts, was detached from the Grand Fleet in an attempt to intercept the Germans near Dogger Bank. Admiral Hipper set sail on 15 December 1914 for another such raid and successfully bombarded several English towns, but British destroyers escorting the 1st BCS had already encountered German destroyers of the High Seas Fleet at 05:15 and fought an inconclusive action with them. Warrender had received a signal at 05:40 that the destroyer was engaging enemy destroyers although Beatty had not. The destroyer spotted the German armoured cruiser and her escorts at about 07:00, but could not transmit the message until 07:25. Admiral Warrender received the signal, as did the battlecruiser , but Beatty did not, despite the fact that New Zealand had been specifically tasked to relay messages between the destroyers and Beatty. Warrender attempted to pass on Sharks message to Beatty at 07:36, but did not manage to make contact until 07:55. Beatty reversed course when he got the message and dispatched New Zealand to search for Roon. She was being overhauled by New Zealand when Beatty received messages that Scarborough was being shelled at 09:00. Beatty ordered New Zealand to rejoin the squadron and turned west for Scarborough. The British forces split going around the shallow Southwest Patch of the Dogger Bank; Beatty's ships passed to the north while Warrender passed to the south as they headed west to block the main route through the minefields defending the English coast. This left a gap between them through which the German light forces began to move. At 12:25, the light cruisers of the II Scouting Group began to pass the British forces searching