‘Percy Jackson’ sequel picks up where the demigod left off

This is a test player.

This is a summary. To read the whole story subscribe to BostonGlobe.com

PERCY JACKSON: Sea of Monsters

The mythology-rooted “Percy Jackson & the Olympians” franchise is fairly engaging stuff, unabashed “Harry Potter” knockoff or no. Author Rick Riordan’s popular kid-lit series made its screen debut three years ago with an adaptation of “The Lightning Thief” — directed by “Potter” alum Chris Columbus, naturally — and proved to be a fun, brisk, even intermittently educational fantasy spectacle. As the lead, Logan Lerman (“The Perks of Being a Wallflower”) skated through the action with easy charisma. If the movie had had a convincing emotional core, the imitation discussion might have been footnote material.

The new sequel, “Percy Jackson: Sea of Monsters,” delivers more of the same, on all counts.

Full story for BostonGlobe.com subscribers.

Get the full story with unlimited access to BostonGlobe.com.

Just 99 cents for four weeks.