How to respond to email about kids

I’ve been avoiding contact for a week from my narcissist husband that chose to sell his house from me and the kids and live separately from us…but, wants to luxury of coming and going from my house like a hotel..then going ghost…that at his convenience popping back up.

Since all of this (December) I’ve been doing my best to keep it ONLY about the kids…I’ve asked him countless times to take them to his house..

He rather show up here without asking and hang around for a day or two then dip out.

I’ve avoided talking to him, blocked him on everything besides email.

He all of the sudden “cares” about the kids and says it’s unfair to them and him…and no I don’t want to keep them from him but he uses them to control me and to continue what he is doing in using me and taking advantage of this situation.

That’s a summary of the current.

My question…

He JUST emailed this

“I will be there this evening. And i will take —- with me if thats ok?”

I have no idea if I should respond…I don’t want him showing up here randomly and he wants to take only ONE of our kids with him…on a school night…and he lives 30 mins from our kids school.