Escape book/s to get through a tough time

Hello, I’m going through a mentally tough time and looking for a great book/series to escape into. I’d love something gripping and unputdownable – but not something that is too sad/intense/poignant. I like: – strong FMC, older/wiser – sharp dialogue – medium/fast-paced plot that moves from early on (no ‘it gets good halfway through’) – [...]