If you are referring to the timeline for my Sleeper research: McGivern's notes on his furtherance of our work over holiday have contained some promise, though I am not yet willing to commit to trial as of yet. Predicting advances in research is difficult, particularly when I do not have a quality laboratory in which to work, but I am confident I have isolated the key ingredients of the potion; now it is simply a matter of building an antidote, step by step. I cannot imagine it will take much past summer for a working version, unless the final steps prove tricky. The chance to examine a living Sleeper in person would likely speed the research, but I am not yet confident enough in my formulation to suggest that an operation be conducted to obtain one at risk to the Order or the risk of heightened security in future.

If you are referring to the timeline for removing that woman: the best (and most undetectable) poison must be started under a full moon and finished under a new moon, which brings us to 10th May. I have gathered the ingredients and will begin the brewing on schedule.

I am in favor of admission for the children, though someone ought have an extremely emphatic word with Mr Weasley about his temper first.