§ Of Beren and Lúthien The Silmarillion

Now Beren lay in a swoon within the perilous Gate, and death drew nigh him for there was venom on the fangs of the wolf. Lúthien with her lips drew out the venom, and she put forth her failing power to staunch the hideous wound. But behind her in the depths of Angband the rumour grew of great wrath aroused. The host of Morgoth were awakened.