Headache!

One of our school librarians is off for what threatens to be a very long time. Squeezing bits here and there and moving people about, we managed to put a plan in place to cover the school library with two members of staff. One of they phoned me yesterday to let me know that she had been signed off for at least two weeks and I heard today that the other one had a family emergency which means that he’ll be away as well.
I did my best but this time I am stumped!