While Dark Age was running, FanPro/Catalyst released "historical" novels filling the Jihad gap.
by Robert N. Charrette (c. 3023–3028) – Focuses on the Wolf's Dragoons and House Kurita. battletech novels in chronological order
The aliens are us. The Clans return, and the Inner Sphere is shattered. While Dark Age was running
Here’s an informative post for BattleTech fans looking to read the novels in chronological (in-universe) order, rather than publication order. rather than publication order.