Running Hot. Number 5 in series

Ex-cop Luther Malone and quirky librarian Grace Renquist are a strange partnership. Grace has been hired as an aura-reading consultant in the quest for a murder suspect, but has zero field experience. Her bodyguard, Luther, walks with a cane and isn't good with a gun! So the last thing they expect is for romantic sparks to fly between them at their hotel in Maui, where they're posing as honeymooners.
However, when rogue operatives for an underground group pour into the luxury resort their attraction must be suppressed quickly. Grace recognises the dark spikes in their auras and understands how dangerous these people can be. While the pair's employers scramble to get them backup, Luther and Grace have to think on their feet but the criminals in their midst aren't just high-level sensitives - they've enhanced their talent with a potent and unpredictable drug.
And as Grace knows all too well, if you don't control your powers, your powers will control you...