[Sidenote:  Construction of Heorot.] Such being his lineage, it is no wonder that Hrothgar became a mighty chief; and as he had amassed much wealth in the course of a long life of warfare, he resolved to devote part of it to the construction of a magnificent hall, called Heorot, where he might feast his retainers and listen to the heroic lays of the scalds during the long winter evenings.

   “A hall of mead, such as for space and state
    The elder time ne’er boasted; there with free
    And princely hand he might dispense to all
    (Save the rude crowd and men of evil minds)
    The good he held from Heaven.  That gallant work,
    Full well I wot, through many a land was known
    Of festal halls the brightest and the best.”
                                        Beowulf (Conybeare’s tr.). 
The inauguration of this hall was celebrated by a sumptuous entertainment; and when all the guests had retired, the king’s bodyguard, composed of thirty-two dauntless warriors, lay down in the hall to rest.  When morning dawned, and the servants appeared to remove the couches, they beheld with horror the floor and walls all stained with blood, the only trace of the knights who had gone to rest there in full armor.

[Sidenote:  The monster Grendel.] Gigantic, blood-stained footsteps, leading directly from the festive hall to the sluggish waters of a deep mountain lake, or fiord, furnished the only clew to their disappearance.  Hrothgar, the king, beholding these, declared that they had been made by Grendel, a descendant of the giants, whom a magician had driven out of the country, but who had evidently returned to renew his former depredations.

“A haunter of marshes, a holder of moors.
. . . . .  Secret
The land he inhabits; dark, wolf-haunted ways
Of the windy hillside, by the treacherous tarn;
Or where, covered up in its mist, the hill stream
Downward flows.”
Beowulf (Keary’s tr.).

As Hrothgar was now too old to wield a sword with his former skill, his first impulse was, of course, to offer a princely reward to any man brave enough to free the country of this terrible scourge.  As soon as this was known ten of his doughtiest knights volunteered to camp in the hall on the following night, and attack the monster Grendel should he venture to reappear.

But in spite of the valor of these experienced warriors, and of the efficacy of their oft-tried weapons, they too succumbed.  A minstrel, hiding in a dark corner of the hall, was the only one who escaped Grendel’s fury, and after shudderingly describing the massacre he had witnessed, he fled in terror to the kingdom of the Geates (Jutes or Goths).  There he sang his lays in the presence of Hygelac, the king, and of his nephew Beowulf (the Bee Hunter), and roused their deepest interest by describing the visit of Grendel and the vain but heroic defense of the brave knights.  Beowulf, having listened intently, eagerly questioned the scald, and, learning from him that the monster still haunted those regions, impetuously declared his intention to visit Hrothgar’s kingdom, and show his valor by fighting and, if possible, slaying Grendel.