You chose to heed the warning and cautiously approach the mysterious figure, who introduces themselves as Sæbjörn, a guardian spirit tasked with maintaining the balance between realms. Sæbjörn's presence brings a sense of calm amidst the unsettling surroundings. You ask Sæbjörn for guidance on how to navigate the dangers lurking in the burial mound. As you wait for Sæbjörn's response, a low growl echoes through the chamber, causing the walls to tremble slightly. The shadows seem to deepen, and an oppressive chill fills the air, making your breath visible like ghostly tendrils. Sæbjörn's eyes widen in alarm as they warn you that your presence has disturbed a malevolent entity known as Grendel, an ancient beast bound within the depths of this tomb. Sæbjörn explains that Grendel is drawn to sources of light and sound, its hunger insatiable and its rage uncontrollable. The only way to evade Grendel is to move silently and extinguish all sources of illumination. Sæbjörn offers you a dimly glowing crystal pendant that can ward off Grendel temporarily, advising you to use it wisely in times of dire need. The ground beneath you quivers once more, signaling Grendel's proximity. With a grave expression, Sæbjörn urges you to make haste and be wary of every step taken.