To show the use of a Collection Index Pagelet to link to blog posts in a Collection with No Index I made this site: [Stress-Free]

It has a Collections page added and titled Relax and within the collection are three Rich Text pages.

There is a Collection Index pagelet on the Collection page (Relax). The target of this pagelet is the Relax collection.

This Relax Collection has No Index set in the Inpector. The 'Sorting:' controls the order of the posts in the Collection Index pagelet so that the most recent are at the top of the page.

I made the Collection Pagelet's Text bigger (because it's so small by default) by inserting this CSS code using Site Code Injection.

<style type="text/css"> #sidebar { font-size: 1.0em; } </style>

The Menu path for this is:
Site > Site Code Injection > Head area > (into bottom box)

Screen capture of place: -->CSS Site Code Insertion

I adjusted the '1.0em' size in +/- 0.1 increments. If you don't like it, delete it and close the dialog.

There is a Download page that has a ZIP of the Sandvox Pro Site Document in an effort to let you see what is happening. Double-click on the downloaded ZIP file to un-zip it.