心：地下之城 - 快速入門

I've been reading through the quickstart, and the way it describes the routes to unknown places feels so evocative—it instantly sparks adventure ideas. The monster lore is creepy and detailed, which makes me excited to run a session.

The quickstart gives you just enough rules and setting lore to get a party into the Heart without feeling overwhelmed. I ran my first session in under two hours after reading it, and the map of those roiling tunnels already has my players hooked.