Steal Chimarvamidium

It seems that Edwinna Elbert in the Ald-ruhn, Guild of Mages now wishes, with your assistance, to acquire a book, Chimarvamidium, from a fellow Mages Guild member in Vivec. Chimarvamidium is the sixth volume of Marobar Sul's 'Ancient Tales of the Dwemer'. Evidently Sirilonwe of the Vivec branch has acquired a copy of the book and Edwinna Elbert wants you to 'borrow' the book and bring it to her. She warns you that if you are caught stealing you will be expelled from the Guild.

Take the guild guide to Vivec and find Sirilonwe in her room. Lock yourself in her closet, pick or cast open the lock on the chest and take the book. Return it to Edwinna Elbert.