The Tiefling shrugs at the lack of knowledge about the seal and carrying the remaining scrolls and books with his arms walks out to show Drina and Narissa.
With the party outside the secret room, it is safe for Drina and Narissa to release the lever. Narissa, being the last spellcaster in the party, still can't make out what the third scroll says (so it's not meant for a sorcerer either). The floorboards creak ominously outside the library. Other than the wind howling in the eaves, all is deathly still.