Mara heard the faintest of clicks as the minuscule triggers hooked over the platforms to hold the bent, straining beams and cablework in place.

The queen post truss and the king post trust may be combined, by using the straining beam of the queen post truss as the tie beam for a king post truss above.

Queen 1) A pair of vertical posts in a roof system that are part of a truss, with a straining beam between and in tension holding up a tie beam or; 2) Two posts in a roof system not acting as a truss in the engineering sense and here in compression.