Displaying data from another catalogue

Is there a way to reference and display the title and description of multiple selected items from another catalogue? Currently I have it so the titles link to the entries, which include an additional line of text in the description and I would like that description output on the current catalogue entry. With all those options maybe I am missing the obvious one as this seems like it should be a simple enough thing to achieve. Maybe some Tempcode?



 

It's probably possible but it'd take me an hour of experimentation to give a concrete answer. Something involving the main_content block, Tempcode, and drawing on the raw parameter for the particular field.