Complex sentence: They can find nothing, despite wandering through most of the Venture compound, and figure Dr. Venture's lab ought have something, but the Monarch is unimpressed by Dr. Venture's lackluster workstation.
Split into simpler sentences: They can find nothing, despite wandering through most of the Venture compound, and figure Dr. Venture's lab ought have something. The Monarch is unimpressed by Dr. Venture's lackluster workstation.