Arkham Horror (Third Edition): Secrets of the Order

During the encounter phase, if you’re in a threshold space and aren’t engaged with a monster, draw from the threshold encounter deck and resolve the effect matching that space’s threshold type. Threshold spaces count as street spaces for other effects, except encounters (p. 4).

No. After crossing a hazardous border, you must stop unless you pay its cost; if you’re already done moving, you don’t have to pay. Monsters ignore these additional costs (p. 4).

A mystery counts as part of its connected neighborhood for effects involving neighborhood components. However, clues at a mystery can be gained through an encounter in that mystery space, not through encounters in other spaces in the neighborhood (p. 5).

No. First resolve the top effect and choose one of its options; then resolve only the secondary effect under the matching heading. Don’t read the secondary effects before making your choice (p. 5).

Not while it’s ready: it has no health value then, so damage alone can’t defeat it. If it later engages or becomes exhausted, it can be defeated by damage as normal; a ready shrouded monster also can’t be exhausted, and you can’t look at its other side (p. 6).