Chained after the normal ATTACK handler in each goblin's object record (action 15 runs 90DB, then this). If the attack killed the goblin, it comes straight back: the dead flag is cleared, its number is written back into its slot in the character table (so it acts again), it is moved to another room and given a new adjective, all from its 6-byte entry in the table at A3C3. The game prints 'the goblin falls down a hole and vanishes.'

It then means to announce '- another goblin' if the goblin's new room is Bilbo's, but compares Bilbo's room with register B, which this routine never sets; B holds whatever the attack routine left there (the attack value), so the announcement depends on chance.