Reading kitaabs with quraanic ayats

Dear Mufti Sahab

Assalaamu-Alaikum

If a person is reading a Kitaab which has Quranic Ayats in it, e.g. Hayatus Sahaba, and breaks her Wudhu. Can she continue reading or does she have to make Wudhu again.

I tend to read in bed and put it away if I break my Wudhu.

Please advise

Wassalaam