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This article contains plot details from one or more of the books.
Tamsen was a powerful, creamy-hued dire she-wolf. She very likely had green eyes, like the other wolves of the Beyond. Tamsen had either a black or brown nose.
Unknown male - Mate
Offspring - Two unknown pups
Lachlana - sister
HistoryFaolan must travel to the five packs of the MacDuncan clan with the bone Heep had carved. At the Pack of the Blue Rock, he meets with Tamsen and Lachlana, the two outflankers of the pack. Faolan crawls towards them and when reaches the sisters' paws, the smaller sister picks up the bone, and gives Faolan's nose a bite. They give him a bone of an antler; the contrition bone he must carve. But first, the pack's leader, Dain, reads the bone.
Tamsen is now captain of the Blood Watch.
She is first mentioned to have given Faolan, Edme, the "Whistler", Mhairie, and Dearlea permission to try and break up the Skarrs dance circles, though she believes there is very little hope in succeeding.
In the gadderheal, Tamsen greets and thanks four lieutenants from the MacNamara clan, who tells Tamsen that she can go back to the Pack of the Blue Rock. Tamsen would wait until the additional MacNamara wolves arrived.
After Faolan, Edme, the Sark, and Gwynneth come back to the Blood Watch with Liam MacDuncan, she listens to how Liam (who was the Prophet) was behind all of the Skarrs dancing. She invokes the privilege of the Sayer and says that Liam must be taken to as many dancing circles as possible between the Blood Watch and the Ring of Sacred Volcanoes and be unmasked.
- Tamsen is a varient of Tamsin, which is the shortened version of Thomasina, the female version of Thomas.