“entered”
Since it happened when the subject <em>was</em> sleeping, which is past tense, the other verb needs to be in the past tense form too.
In the book, "Nethergrave", Jeremy is given a photograph with a note to do his own homework every year on his birthday from his father.
31/80... of you have a school calculator you could put it in but, remember to simplify like I did
Https://rampages.us/balder/2015/10/05/55/
A link to a summary of the book and why she named it that .
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