Frissyn is a shimmering, silver powder known to be made from Sasquatch saliva, Quintessence and a number of other ingredients. It is the only thing that can stop Everblaze, also known as the unstoppable flame. In Book 3, after Fintan's attack of Everblaze at Oblivimyre, Sophie and Fitz had to bottle some last-minute Quintessence to stop the Everblaze from destroying too much of Eternalia. Sophie is one of the only elves to know the formula which was implanted into her brain presumably by Mr. Forkle or some other elf in the Black Swan. It is known to be very, very cold.