[3-4] lið hryggs lagar eldbrota dugði ‘the army of the sorrowful flame-breaker of the sea did well’: The reference is probably to the Byzantine army and its leader. The structure of this intercalary cl. follows Skald and NN §944 rather than Skj B, which fragments l. 3 syntactically. However, both Skj B and Skald adopt Bb’s dugðit ‘did not do well’, with suffixed negative, rather than the positive 3rd pers. sg. pret. of Flat. Both readings are possible, and it could be argued that Bb’s is better on grounds of sense, viz. the Byzantine army did not do well but was saved by the brave Varangians.