Arrows of Eros Always Spell Trouble.

Still trying to keep their relationship under wraps, Nico and Will face their first Valentine's Day together. However, their plans to keep the day low-key are put under threat by the appearance of an unexpected guest; one who has misplaced a very significant item and needs their help to recover it, before it is too late.

Keeping their relationship a secret is the last thing on their minds.

(A One-Shot based in the AU-verse of The Missing Hero, but can be read as a standalone.)