1 INTRODUCTION

2 THE LAG-LUMINOSITY RELATION IN THE NEAR-IR

3 USING DUST TIME LAGS AS STANDARD CANDLES

4 SIMULATING THE VEILS TRANSIENT SURVEY FOR AGN

5 RESULTS

6 DISCUSSION OF PRACTICAL CHALLENGES IN CARRYING OUT AN AGN DUST LAG SURVEY

7 CONCLUSION AND LEGACY VALUE TO FUTURE HIGH-REDSHIFT AGN COSMOLOGY STUDIES